set to hit the highway for the memorial day weekend many drivers are wondering what they should do. a record of nearly 34 million vehicles are being recalled for defective air bags blamed for five deaths and more than 100 injuries. we have more now from jeff glor. >> reporter: consumers have been warned many takata air bags are defective and may deploy with excessive force rupturing a metal inflater sending shrapnel flying through the vehicle. but today car owners are confused because it's not known which vehicles are recalled. 11 beforers are involved and the companies say they're waiting for details from takata to determine the models of the cars which may have the defective air bags. >> this is the worst recall situation ever. >> reporter: sean kane is the president of the company's research and strategies. >> you're between a rock and a hard place with as a consumer. you have a safety defect fit manifests itself can cause severe injury but you can't do anything about it short of park you can car and waiting for parts availability. >> reporter: tacetta said new air bags will be available but the wait could be long because of a shortages of reflame bags and it could take years to replace the units. people living in humid states first because the company believes the problem is cause bid moisture leaking into the sealed canister. the ntsb told car owners to regularly check the safercar.gov web site for updates but since the announcement yesterday no new information is available. many are wondering whether they should drive their cars or disable the air bags. jake fisher with consumer reports. >> this is a small occurrence. tens of thousands of these vehicles have saved lives. >> reporter: takata says it's tested 230,000 air bags and 265 ruptured. none of the auto experts remedies abling air bags, they're still more likely to save your life than take it. >> pelley: jake, thank you. while we wait for the manufacturers to identify all to have the models being recalled, we do have a list of what we know so far and you will find it on our web site cbs.com. today, five of the world's biggest banks agreed to plead guilty to felonies and will pay more than $5 billion in fines. federal prosecutors call their crimes breath taking, including a price fixing scheme to manipulate foreign currency exchanges and a plot to fix interest rates. the fines are among the largest ever. jeff pegues is following this. >> reporter: they call themselves the cartel. prosecutors say a group of traders at the banks discussed fixing the prices of u.s. dollars and euros in secret online chatrooms. assistant attorney general bill baer. >> the dollar-euro spot market is as big as it gets. every day about $500 billion worth of dollars and euros are traded in this market. >> reporter: according to the justice department the collusion started in 2007 and lasted five years. attorney general loretta lynch says the traders increased their commissions and the bank's bottom line. >> their actions inflated the banks while harming countless con sciewmers investors and institutions around the globe from pension funds to major corporations and including the banks' own customers. >> reporter: court documents showed a brazenness of traders at barclay's bank. in 2011 one trader wrote we're trying to manipulate it a bit more in new york now. another said if you ain't cheatin', you ain't trying. four of the banks pleaded guilty to antitrust violations. in a written statement barclays c.e.o. antony jenkins said the people involved have brought our company and industry into disrepute and crp morgan jamie dimon called it a great disappointment. more than a dozen bank employees have been fired but the justice department has been criticized for not charging individuals in major financial cases including this one. patrols ciewrts touted the fact the banks themselves were charged rather than subsidiaries. because of agreements made with regulators all of the banks will continue to operate normally despite the guilty pleas. >> pelley: more felonies on the rap sheet of wall street. jeff, thank you very much. a serious threat to the world's heritage tonight. i.s.i.s. has taken the famed syrian city of palmyra. the city mentioned in the old testament is home of priceless ruins. the fall of palmyra comes days after i.s.i.s. overran the strategic iraqi city of ramadi, the capital of a province that more than a thousand americans died to secure during the u.s. occupation. today, we got some fascinating insight into osama bin laden's secret documents seized at his home by seal team 6 were declassified. here's mark phillips. >> reporter: osama bin laden may not have had a real bookshelf in the pakistani hide out where he was killed but he had an extensive library. he had digitized copies of books, many in english on computer drives along with thousands of internal al quaida memos, all taking a dark view and many showing a hostile intent toward his sworn american enemy. some of what he read you might expect to find. the 9/11 commission final report whose accuracy he would have been able to judge. among the files memos of his followers saying the focus should be on killing and fighting the american people, not attacking arab regimes. but bin laden's choice in books was like a window into his world view. books like american strategic blunders. the hint is in the title. a catalog of where the author thought u.s. policy went wrong from pearl harbor through the cold war. or bloodlines of the illuminati, a con spirtorialist bible which claims a secret american elite controls everything from finance to war. and imperial imperial hubris which argues bin laden was misunderstood, he didn't hate the u.s. for what it is but for what he thought it had done to the islamic world. bin laden reading about bin laden. and, scott also among the files was an al quaida job application. among the questions, do you wish to execute a suicide operation and who shall we contact in case you become a martyr, read clearly and legibly it says. >> pelley: mark phillips from the london news room. mark, thank you. more violent weather overnight and vincente arenas is traveling tornado alley. >> reporter: more than two dozen tornadoes were reported ripping through parts of oklahoma and texas overnight sending people running for cover. one twister touched down near the north texas town of runaway bay destroying homes. brad snodgrass saw a funnel cloud heading straight for him. >> i stepped outside and listened to it and could hear it swirling like a real deep whistle when it starts swirling in the funnel. it's crazy loud. >> reporter: snodgrass and wife brandy hid in the neighbor's hallway downstairs. >> all of the windows came crashing in. >> reporter: the tornado ripped a roof off their building and another nearby. no one was injured. the tornadoes are suspected of striking a small resort town of mineral wells, the city's main street was blocked by debris. the cluster of storms also flooded homes in the town of bridgeport. near san angelo, the concho river crested at its higher level in 40 years. the concern now turns to flooding. more thunderstorms in the forecast all the way through memorial day. >> pelley: vincente thank you very much. a california coast is coated in oil after a pipeline break near santa barbara. ben tracy is there. >> reporter: the oil slick stretches for nine miles. containment vessels are trying to stop it from spreading while dozens of hand crews work the beaches bagging up oil-con tam nailtd sand. >> see where it came out of the ground? >> reporter: the pipeline ruptured tuesday afternoon possibly leaking 100,000 gallons of crude according to plains all american pipeline. darren palmer is district manager. >> we are sorry the release has happenedre bringing in all our resources to respond. >> reporter: you can already see the impact. this bird was coated with oil. >> two of them. >> reporter: these two whales nearly swam into contaminate waters. santa barbara district attorney joyce dudley is considering criminal and civil charges against the pipeline company. >> i don't know if this is a crime scene yet but as i look across this ocean and i see these rocks covered with tar and oil, it almost feels like death. >> reporter: in 2010, plains all american pipeline was forced to pay $44 million after ten oil spills in several different states. scott, as for the cleanup they say it could take weeks. this is what your hand looks like today if you touch a rock. >> pelley: i want to point out the broken pipeline has been shut off. ben, thank you very much. today an important clue emerged in a horrifying murder case in washington, d.c. last thursday, a multi-million-dollar house was set on fire. later, four bodies were found inside, three of the victims had been beaten or stabbed. wyatt andrews reports police are now zeroing in on a motive. >> reporter: sources say last thursday, an assistant to washington businessman is a sawas savopoulous dlaiferred delivered a package outside his home with inl instructions inside. it was extortion mon to stop abuse of family including torture of his young son. after the house was set on fire police found the bodies of savopoulous, wife amy, theirld son and housekeeper vera figeroa. cathy lanier says the crime is her detectives' highest priority. >> one of the horrible things we have to deal with and anytime there's a child involved it's one of the things that shakes all of us. >> reporter: police believe the crime began last wednesday evening. they're investigating whether the assailant terrorizing the family inside ordered a domino's pizza with an instruction to leave it outside. savopoulous and wife amy took steps through voicemail and text messages to warn a second housekeeper nelizta gutierez not to come to work thursday. >> sometimes you never understand all these things happen. i'm lucky that i'm still here. >> reporter: savopoulous was the respected c.e.o. of a high-tech steel corporation who also had business interests in puerto rico and the u.s. virgin islands. so far the f.b.i. has not been asked for help and this remains a tragic unsettling d.c. investigation. >> pelley: wyatt andrews thanks. why are so many cars flying off the track at the indy 500? and on a clear day you can see new jersey -- the view from the top of one world trade center when the "cbs evening news" continues. turn any hose connection into a clever feeding system for a well-fed garden. miracle-gro. life starts here. bring us your aching and sleep deprived. bring us those who want to feel well rested. aleve pm. the only one to combine a safe sleep aid... plus the 12 hour pain relieving strength of aleve. be a morning person again with aleve pm. my constipation and belly pain have my stomach feeling all knotted up. i've tried laxatives... but my symptoms keep returning. my constipation feels like a pile of bricks... that keeps coming back. linzess can help. once-daily linzess treats adults with ibs with constipation or chronic constipation. linzess is thought to help calm pain-sensing nerves and accelerate bowel movements. linzess helps you proactively manage your symptoms. do not give linzess to children under 6 and it should not be given to children 6 to 17. it may harm them. don't take linzess if you have a bowel blockage. get immediate help if you develop unusual or severe stomach pain especially with bloody or black stools. the most common side effect is diarrhea, sometimes severe. if it's severe, stop taking linzess and call your doctor right away. other side effects include gas, stomach-area pain and swelling. bottom line, ask your doctor about linzess today. yz >> pelley: it's been crash after crash during practice runs in advance of this weekend's indy 500. jim axelrod went to the brick yard to find out why. >> reporter: it's been a rough week at the indianapolis motor speedway. four spectacular accidents during practice runs. three saw cars go airborne and flip. >> three of us have gotten upside down. i was the third. >> reporter: driver ed carpenter lost control of his car sunday. >> under here there's a reinforced field in there. >> reporter: he credits his car's design for walking away without a scratch. >> you can be going 230 miles an hour, flip upside down, drag along the track and the way this is constructed, you're going to be fine. >> i think i'm proof of that right here. >> reporter: but a new design feature is raising concerns for those searching for why the cars went flying at all. something called an aero kit. basically the car's body and aerodynamic wings. indy carmakers started designing them so fans can tell the cars apart. >> for years you had 33 identical cars. >> reporter: bobby rahall won in 1986 and owns the car his son graham will race sunday. >> you have one car take off then another you go, holy smokes, and no one wants the risk of somebody else doing that. >> reporter: do you know why it happened? >> i don't. is there a solution by sunday? probably not. >> reporter: immediately after the crashes race officials sat down with the car makers and they all agreed to lower the engine's horsepower change the aerodynamics and slow the cars down. >> pelley: we got word driver james hinchcliff got out of i.c.u. today. jim axelrod at the raceway. thanks so much. another indiana institution david letterman's final show before a star-studded audience. next. we all enter this world with a shout and we see no reason to stop. so cvs health is creating industry-leading programs and tools that help people stay on medicines as their doctors prescribed. it could help save tens of thousands of lives every year. and that would be something worth shouting about. cvs health, because health is everything. introducing the first ever gummy multivitamin from centrum. a complete, and tasty new way to support... your energy... immunity... and metabolism like never before. centrum multigummies. see gummies in a whole new light. ...and the wolf was huffing and puffing... kind of like you sometimes, grandpa. well, when you have copd it can be hard to breathe. it can be hard to get air out, which can make it hard to get air in. so i talked to my doctor. she said... doctor: symbicort could help you breathe better, starting within 5 minutes. symbicort doesn't replace a rescue inhaler for sudden symptoms. symbicort helps provide significant improvement of your lung function. symbicort is for copd, including chronic bronchitis and emphysema. it should not be taken more than twice a day. symbicort contains formoterol. medicines like formoterol increase the risk of death from asthma problems. symbicort may increase your risk of lung infections osteoporosis, and some eye problems. you should tell your doctor if you have a heart condition or high blood pressure before taking it. grandfather: symbicort could mean a day with better breathing. watch out, piggies! child giggles doctor: symbicort. breathe better starting within 5 minutes. call or go online to learn more about a free prescription offer. if you can't afford your medication, astrazeneca may be able to help. ♪ ♪ it may seem strange, but people really can love their laxative. especially when it's miralax. it hydrates, eases and softens to unblock your system naturally so you have peace of mind from start to finish. love your laxative. miralax. the federal government surveillance program... has collected records on nearly every american's phone calls... emails; your most private moments without a warrant... without cause and without your permission. right at this moment... so we got your test results back and... and this moment... the courts have ruled the government... call surveillance program illegal, but the nsa... hasn't stopped. when they invade your privacy, they've gone too far. tell washington: protect our privacy. >> pelley: late today, understand hs of fans of david letterman lined up at new york's ed sullivan theater and a constellation of celebrities turned out as well, all towi tness television history. >> it's the "late show" with david letterman! >> pelley: it's the last show with david letterman. he steps down tonight as the all-time king of late-night comedy. a record 33 years, 6,028 shows and 19,932 guests. >> and joaquin i'm sorry you couldn't be here tonight. (laughter) >> you take the pepperoni off the pizza and leave it on the sidewalk. >> pelley: letter man's comedy routines became part of the culture. moses may have introduced the world to the top ten list by letterman made it funny. >> recommendation from the sleep foundation, when all else fails watch letterman. >> pelley: truth is millions lost sleep to catch his monologue which often delivered a punchline to an evening news headline. >> did the new england patriots cheat their way into super bowl by deflating game balls? there apparently will incriminating texts and e-mails about what they call deflategate. earlier today hillary announced she would be happy to delete them. (laughter) >> pelley: and here's what he told jane pauley sunday morning. >> i doubt anywill ever see me again. (laughter) >> pelley: you can watch dave's last show after your late local news tonight right here on cbs. dave congratulations. we will miss you. in a moment, a rising star in the night sky one ofhe t tallest buildings in the world. r dominique wilkins, are taking charge of their type 2 diabetes... ...with non-insulin victoza. for a while, i took a pill to lower my blood sugar but it didn't get me to my goal. so i asked my doctor about victoza. he said victoza works differently than pills and comes in a pen. victoza is proven to lower blood sugar and a1c. it's taken once a day, any time. and the needle is thin. victoza is not for weight loss but it may help you lose some weight. victoza is an injectable prescription medicine that may improve blood sugar in adults with type 2 diabetes when used with diet and exercise. it is not recommended as the first medication to treat diabetes and should not be used in people with type 1 diabetes or diabetic ketoacidosis. victoza has not been studied with mealtime insulin. victoza is not insulin. do not take victoza if you have a personal or family history of medullary thyroid cancer multiple endocrine neoplasia syndrome type 2, or if you are allergic to victoza or any of its ingredients. symptoms of a serious allergic reaction may include swelling of face lips, tongue or throat fainting or dizziness, very rapid heartbeat problems breathing or swallowing, severe rash or itching. tell your doctor if you get a lump or swelling in your neck. serious side effects may happen in people who take victoza including inflammation of the pancreas (pancreatitis) which may be fatal. stop taking victoza and call your doctor right away if you have signs of pancreatitis, such as severe pain that will not go away in your abdomen or from your abdomen to your back with or without vomiting. tell your doctor about all the medicines you take and if you have any medical conditions. taking victoza with a sulfonylurea or insulin may cause low blood sugar. the most common side effects are nausea, diarrhea, and headache. some side effects can lead to dehydration, which may cause kidney problems. if your pill isn't giving you the control you need... ask your doctor about non-insulin victoza. it's covered by most health plans. allergies distracting you? when your symptoms start... ...doctors recommend taking claritin every day of your allergy season. claritin provides powerful non-drowsy 24-hour relief for... ...fewer interruptions from the amazing things you do... ...every day. live claritin clear. why am i so awake? did you know your brain has a wake system... and a sleep system? science suggests when you have insomnia, the neurotransmitters in your wake system may be too strong, which may be preventing you from getting the sleep you need. talk to your doctor about ways to manage your insomnia. >> pelley: the tallest skyscraper in the western hemisphere one world trade center in new york city rises majestically from the ashes of 9/11 to a height of 1776 feet. starting next week visitors will be able to catch the incredible view from the observation floor, and anthony mason got a sneak peek. >> reporter: every trip to the top of the world trade center starts with a step back in time. >> so i want you to see the elevators. >> reporter: the ride to the 102 floor is a visual history lesson. >> in the 1500s, this is what manhattan looked like. >> reporter: visitors see the transformation from wetland wilderness to modern me metropolis. >> this is the fastest elevator at the world. 34 second and all of a sudden you're at the top. >> reporter: the tour guide david checketts used to run madison square garden but now he's head of the company that operates one world observatory. when you arrive a video shows suspense as the city is unveiled. you're trying to take people's breath away. >> yes, we are. >> reporter: on a clear day visibility seems almost endless you can see the empire state building the statue of liberate statue of liberty and the brooklyn and manhattan bridges. >> you're so high you can see the curvature of the earth. >> reporter: one thing people won't see however are explicit reminders of 9/11, unless they look down at the memorial pools below. >> this space was to be used as looking forward to a future filled with promise. >> reporter: the observatory spans top three floors of world trade center. you can look down at the streets below. this is a video of your 1700 feet straight down. >> it's live from the top of the spire. >> reporter: atop this? yes, sir. >> reporter: guides will help tourists learn about the city's attractions. >> what's going on in the world of sports and athletics. >> reporter: and remember the elevators? the ride down feels more like a flight simulation. as passengers are sent on an aerial tour around the building. and it's just as stunning at night. here more than 1200 feet up, the world trade center likes to say you can see forever when the observatory opens a week from friday to the public, they're expecting between 3 million and 4 million visitors a year. scott? >> pelley: anthony mason on top of the world for us tonight. thanks anthony. that's the "cbs evening news" tonight. for all of us at cbs news all around the world goodnight. narrator: puerto rico's healthcare system is on life support, putting three and a half million puerto ricans at risk. it's an outrage. puerto ricans are us citizens and pay the same medicare taxes, but receive only half the federal healthcare funding as the other 50 states. the headlines tell the story... woman: "unfair treatment from washington." man: "thousands without medications." woman: "it'sri a csis that could imperil the whole economy." narartor: washington must act now to protect care for three and a half million u.s. citizens. before it's too late. every auto insurance policy has a number. but not every insurance company understands the life behind it. those who have served our nation, have earned the very best service in return. usaa. we know what it means to serve. get an auto insurance quote and see why 92% of our members plan to stay for life. torture, arson and cash, lots of cash. new details now pointing to a motive in those horrifying d.c. mansion murders. thanks for being here. i'm derek mcginty. >> i'm lesli foster. police sources now say the killers escaped with tens of thousands of dollars in cash. bruce leshan broke the story at noon and tells us about one of the last people to visit that house. >> reporter: while the killers were holding the family captive inside the house, one of savopoulos' assistant came to the front door delivering a package containing $40,000