At the close, it was down 390, putting the index below 16,000. Senior National Security correspondent Senior National correspondent, i should say, Anthony Mason is joining us now. Anthony, whats going on . Reporter all three major indexes, scott, are now in correction territory. Thats down 11 or more from their recent highs, as worries about Global Growth have spread, stocks around the world have lost 5. 7 trillion in value just this year. Oil prices are worrying wall street. Crude, which fell to 29 a barrel, a 12year low, is down more than 70 over the past 18 months. Theres just too much oil. The world is using 95 Million Barrels a day but suppliers are pumping nearly 97 million, and in fsanctions on iran are lifted, more oil will floot floodon to the market. Thats good news for gas prices. A gallon of unleaded has dropped to 1. 92, almost half what it and theres no floor in sight for oil prices yes, or for this market. Even strong jobs numbers last week couldnt but put the brakes on this slide, and no one is sure what will. Pelley this is all reminiscent of 2008 when the markets crashd a froze up. Any chance that were headed in the same direction . Reporter i dont think so, scott. That was spark by a financial crisis. The underlying u. S. Economy is strong, but there are growing concerns a slowdown in china might spread globally, even to the u. S. , and stocks stocks are likely to remain skiddish until oil prices stabilize. Pelley and banks are in much better shape than they were back then, too. Anthony, thanks very much. You might have t tught this economy would have dominated last nights republican debate, but instead the leading candidates took stock of each other. Ted cruz showed that he hadnt forgotten what he learned as a student on princetons debate team. There were seven podiums, but often it seemed just two contenders. Major garrett. This is actually a movement. Reporter donald trump rallied supporters outside des moines today after an overnight zero sleep. I mean, zero. I recognize that donald is dismayed that s poll numbers are falling in iowa. As you know, ted, in the last three polls, im beating you. Reporter trump and cruz broke what had been nearfraternal bonds to spar over cruzs birth in canada to an american mother. You have great constitutl lawyers that say you cant run. And you know im not bringing a suit. I promise. But the democrats are going to breng a lawsuit. Ive spent my entire life defending the constitution before the u. S. Supreme court, and ill tell you, im not going to be take legal advice from donald trump. You dont have to. Take it from laurence tribe. Reporter then marco rubio weighed in. I hate to interrupt this episododof court tv. Reporter trump and cruz dominated. The values in new york city are socially liberal, pro abortion, pro gay marriage, focus around money and the media. When the World Trade Center came down, i saw something that no place on earth could have handled more beautifully, more humanely than new york. Reporter cruz, whose base is social conservatives, today apologized, but not to trump. I apologize to all the pro life and pro marriage and pro Second Amendment new yorkers. Reporter clinton saying it was just this once, praised trumps defense of the big apple. Scott, jeb bush picked you want endorsement of South Carolina senator Lindsey Graham today, a move that brings almost no money and very few grassroots supporters. Pelley Major Garrett on the campaign for us. Major, thank you. And please note that john dickersons Campaign Coverage this sunday on face the nation will include intntviews with democrats Hillary Clinton and in hawaii tonight, the search continues for 12 crew members after two marine corps helicopters collided overnight off the island of oahu. John blackstone is following this. Reporter high surf and rain off the north shore of oahu has added to the challenge for searchandrescue teams looking for any signs of survivors amidst the debris of the crash. Captain timothy irish there are 12 marines that are still missing. There whereabouts are unknown. Were still looking for survivors. Reporter the aircraft, called super stallions, are some of the largest helicopters used by the military. Capable of lifting heavy cargo loads and carrying more than 50 fully equipped combat troops. Marines gathered alonghe beach, joining the search near the surfing town of haleiwa. Six crew members were aboard each of the two helicopters that collided during a routine Training Exercise late last night. An explosion. And then i heard another one shortly after. It was kind of spontaneous boom and then another boom reporter a coast guard helicopter spotted debris about two and a half miles offshore. Two navy descroirs joined the search for survivors, along with rescuers from the air force and Honolulu Police and fire departments. Searchers say debris from the crash may wash up on oahus north shore beaches. Scott, they were asking the public not to pick up anything that comes ashore. Pelley John Blackstone reporting tonight. Thank you, john. Theres a water crisis in flint, michigan, tonight, where the city switched water sources to save money, only to tap into a sea of trouble. The governor is asking president obama to declare flint a disaster area, but residents say the governor is the disaster. Adriana diaz is there. Reporter Flint Residents week, calling for the resignation of the governor after learning their Drinking Water was contaminated with lead. Ight now, what were looking for is account act. Reporter the problems began after the city switched its water supply to the flint river in the spring of 2014. The corrosive water stripped lead from pipes, and children in the cityere found with high levels of lead in their blood. The city has changed its water source, but environmentalists say the water coming out of faucets is still unsafe. This week, the National Guard started distributing bottled water to residents. Now Health Officials are investigating a spike in legionnaires disease. There have been 87 cases of pneumonialike disease and 10 people have die dyed, including troy kidds mother debbie who died in august. So did she die because of somebody didnt want to say, thats my question. This is what was coming out of their tap. Reporter dr. Marc edwards of Virginia Tech has been studying flints water. If, indeed, it is true this can be linked to the water system and theres a pret strong likelihood that it is and that it will be yes, unfortunately, people will have died from this disease. Reporter fema says theyll respond to the governors emergency request as early as this weekend. Scott, the move would unlock federal funds to repair flints water system and help residents. Pelley adriana diaz in flint for us tonight. Adriana, thanks. There was a terror attack tonight in a muslim nation in west africa. Gunmen stormed an Upscale Hotel frequented by westerners. A number of people have been killed. Hostages were taken. An Islamic Terror Group affiliated with al qaeda has claimed responsibility. Policy after more than a million refugees settled there last year. The refugees fled wars and poverty in the meeft and north africa, but new arrivals in greece are finding europes welcome has limits. Holly williams has that. Reporter despite the freezing cold, the rough seas, and the risk of drowning, the migrants keep coming. More than 1,000 people arrive in greece every day, but now europes welcome mat is wearing thin. Farshad rahimi fard told us he left iran in search of religious freedom, paying a smuggler nearly 3,000. But hes now stranded in greece, living in this abandoned hockey stadium and could face deportation after he, like back by Macedonian Border guards on the route to germany. Reporter hundreds of other stranded migrants, many from north africa, are being held under lock and key in this greek detention center. We were denied permission to go inside, but one of the inmate sent us these videos showing the conditions, including a protest that he said was put down with tear gas. Some European Countries have built razor wire fences. Others will now only accept refugees from syria, iraq, and afghanistan. As an iranian, farshad can go no further than greece, destroying europe. Reporter most of the migrants arriving in europe set off in boats from turkey, and last year, europe promised to pay turkey around 3 billion in return for its help stemming the flow of people. But so far, scott, thats had very little effect. Pelley Holly Williams in istanbul for us tonight. Hole, thank you. It was 25 yrs ago this weekend that u. S. Bombs first fell on baghdad. Operation desert storm wrapped up in just six weeks when iraqi forces gave up kuwait. David martin now on the lessons of that war. Reporter in retrospect, the first gulf war seemed so simple, starting with this definitive statement from president george h. W. Bush four days after Saddam Hussein invaded kuwait. This will not stand, ts aggression against kuwait. Reporter after a buildup saudi arabia,resident bush issued the execute order that turned into one of the most lo porto sided victories in military history. I was able to guarantee president bush that we would succeed because the iraqi army was sitting there in kuwait like a golf ball on top of a tee waited to be hit. Reporter colin powell was the chairman of the joint chiefs at the time and described the war plan in unforgettable terms. Our strategy is very, very simple. First were going to cut it off and then year were going to kill it. Its not like that anymore. Reporter cow think desert storm created Unrealistic Expectations about what military force can do . It may have in the mind of some. It didnt in my mind. I understood the nature of that war, how limited it was, and it wasnt a mold of of what we can do in every other conflict tt comes along. Reporter victory in the but a new biography of president bush quotes his diary as saying, i have no elation. We had hoped after desert storm saddam would be so weakened he would be taken down or he would quit. That didnt happen and that was a great disappoint to president bush. Reporter but at least the president said the United States military had finally risen from the ashes of vietnam. It could fight and win a war overseas. By god, keefe kicked vietnam syndrome once and for all. Thananyou very, t ts much. Reporter presume mused in hisire they desert storm might help establish a new world order, but 25 years later it looks more like a lesson in the limits of military power. David martin, cbs news, the pentagon. Pelley chipotle is taking a timeout for food safety. Of when the cbs evening news continues. T was uncomfortable. Seal out more food particles. Super poligrip is part of my life now. This is sheldon, whose long day setting up the news starts with arthritis pain and a choice. Ke tylenol or take aleve,. The 1 recommended pain reliever by orthopedic doctors. Just two aleve can keep pain away all day. Back to the news. Everyones lookin red carpet ready. My man, lemme guess who youre wearing. Toenail fungus . Whaaat . . Fight it with jublia. Jublia is a prescription medicine. Used to treat toenail fungus. Use jublia as instructed by your doctor. Jublia is workin it most common side effects include. Ingrown toenail,application site redness,. Itching, swelling, burning. Or stinging, blisters, and pain. Oh fight it with jublia now thats a red carpet moment ask your doctor if jublia is right r you. Visit our website for savings on larger size. This helps me to manage my chronic pain. But it came with some baggage. Youre not the only one. Opioids block pain signals by attaching to something called mureceptors here mureceptors in the bowel. And that can cause opioidinduced constipation. Or oic. I could struggle with oic the whole time i take my opioid . Maybe not. Theres movantik. Movantik can help reduce oic by blocking opioids from binding to mureceptors in the bowel. Do not take movantik if you have a bowel blockage or history of them. Serious side effects may include a tear in your stomach or intestine. And can also include symptoms of opioid withdrawal. Common side effects include stomach pain, diarrhea, usea, gas, vomiting, and headache. Tell your doctor ababt any side effects and about medicines you take as movantik may interact with them causing side effects. So, go on, talk to your doctor about opioidinduced constipation. And ask if oncedaily movantik is right for you. If you cant afford your medication, down temporarily so employees could clean after a noafers outbreak that sickened 140 people. It was the latest health issue for the food chain which now says the plan to close all stores for a few hours next month will be to thank employees for sticking them with and discuss some of the food safety changes we are implementing. Its a start, says food safety professor ben chapman. If they can convince the public what theyre doing really will make food safer, i think that goes a long way. But, again, im not sure were there yet. Reporter chipotles healthrelated issues began last july with a small e. Coli outbreak in seattle. In august, 200 people were sickened by norovirus in california. In october, dozens of customers in chipotle restaurants across nine states came down with e. Coli infctions, and the its restaurants. The company is now tightening its food safety procedures, including doing d. N. A. Based tests on ingreents before theyre shipped to restaurants and beefing up worker training. Theres a lot of talk, but we evaporate seen the data and the behavior change. We need to see that changes have been made. Reporter well, chipotles stock price rose almost 20 point after todays announcement, but, scott, thats far below where it had been trading. Pelley anna, thanks very the sean penn interview next. Fact. When emergency room doctors choose an otc pain relieveve for their patients muscle, back and joint pain. The medicine in advil is their 1 choice. Nothing is stronger on tough pain than advil. Relief doesnt get any better than this. Good news. Youre down with crestor. Alright now theres a way you can get crestor for 3. Adding crestor, along with diet, lowers bad cholesterol. Crestor is not for people with liver disease, or women who are nursing,pregnant, or may become pregnant. Tell your doctor all medicines you take. Call your doctct if you have muscle pain or weakness; feel unusually tired; have loss of appetite, uppebelly pain, dark urine or yellowing of skin or eyes. These could be signs of serious side effects. Ask for the crestor 3 card. Pelley Actor Sean Penn insists his interview with el chapo had nothing to do with the mexico. Penn spoke to charlie rose in a 60 minutes interview. Know. We know that the Mexican Government, they were clearly very humiliated by the notion that someone found him before they did. They did. We didnt were not smarter than the d. E. A. , or the mexican intelligence. We had a contact, upon which we were able to facilitate an invitation. Reporter cow believe the Mexican Government released this in part because they wanted to see you blamed and to put you at risk . Yes. Reporter theyyanted to encourage the cartel to put you in their crosshairs . Yes. Reporter are you fearful for your life . No. Reporter i first wanted to know why you wanted to do this, why you you wanted to go there. Second i wanted to know how you felt about the risk you might be taking and why that risk was worth it. Only had i thought that this is somebody who uponpon whose interview could i begin a conversation about the policy of the war on drugs. Reporter you have no regrets . Yeah, i do i have a terrible regret. Reporter what are the regrets . I have a regret that the entire discussion about this article ignores its purpose, which was to try to contribute to this discussion about the policy in the war on drugs. Pelley charlies interview with sean penn this sunday on 60 minutes. And Steve Hartman is next. If you have high Blood Pressure like i do, many Cold Medicines may raise your Blood Pressure. Thats why theres coricidin hbp. It relieves cold symptoms without raising Blood Pressure. So look for powerful Cold Medicine with a heart. Hi hey you look good. Thank you, i feel good. It all starts with eating right. Thats why i eat amaz n prunes now. Theyre delicious and help keep my body in balance. I lovehese. Sunsweet amaz n prunes, the feel good fruit. Come on in pop pop. Happy birthday. I just had a heart attack. And now i have a choice. For her. For them. And him. A choice to take brilinta. A prescription for people whove been hospitalized for a heart attack. I take brilinta with a baby aspirin. No more than 100 mg. As it affects how well it works. Its such an important thing to do to help brilinta worked better than plavix. And even reduced the chances of dying from another one. Dont stop taking brilinta without talking to doctor. Since stopping it too soon increases your risk of clots in your stent, heart attack, stroke, and even death. Brilinta may cause bruising or bleeding more easily or serious, sometimes fatal bleeding. Dont take brilinta if you have bleeding, like stomach ulcers. A history of bleeding in the brain, or severe liver problems. Tell your doctor about bleeding, new or unexpected shortness of breath, any planned surgery and all medicines you take. I will take brilinta today. Tomorrow. And every day for as long as my doctor tells me. Dont miss a day of brilinta. Pelley theres no greater love than the love at the heart heres Steve Hartman on the road. Reporter officer ryan davis is returning to the scene of the crime, reluctantly. Its getting very difficult right now. Reporter last weekend, he and his partner were investigating an alarm at this Grocery Store in canton, ohio. It was the middle of the night 149 a. M. Reporter and there were signs of a breakin. We just started working our way through the Grocery Store. Store reporter ryans partner was a german shepard named jethro. He was more than just a police dog. The davis family got jethro at eight weeks. He grew up as both a family pet and a canin officer. Every day, seamlessly transitioning from pillow to police work and back again. Until last weekend. And took three bullets. Im here because he did what he did. Reporter ryan says the dog saved his life, but remarkably, he says he wishes it was the other way around. I would trade places with him in a heartbeat. Reporter do you mean that . Absolutely. Because i wouldnt have to sit here and suffer over the loss of him. Hes left aole that will never be filled. He gave his life for me. taps reporter its hard to imagine owing such a debt with no way to pay it back. But this week, the city of canton tried. They filledheir civic center, invited Police Officers from across the country, and honored jethro on what would have been his third birthday. And as for the killer, police do have a suspect in custody, but thats of little consolatiti to that will make this better is making certain his partner is never forgotten. So how do you want him remembered . The oneord that comes to mind is unconditional. He was unconditionally loyal, loving, supportive. He was he was a hero. Reporter he was a hero, as is any officer who can be this devoted. Steve hartman, on the road, in canton, ohio. Pelley and thats the cbs evening news for tonight. For all of us at cbs news all around the world, im scott pelley, and ill see you sunday on 60 minutes. Good night