and abc's weekend anchor of "world news," abc's david muir is at the new york stock exchange to guide us through it tonight. david? >> reporter: diane, good evening from wall street. as you know, confidence was already shaky down here. then came that word from the fed, essentially an acknowledgement of the elephant in the living room, that we could very well face a second recession. and today here on the floor, it was very clear that not only wall street, but the world, was listening. tonight the stock market, the dow, sits at its lowest level in a year. meaning the gains you've seen in your ira, 401(k), the children's college fund, all gone, as though this last year never happened. so much of it, a reaction to the fed saying the economy is now on the edge of another recession. and the fed's answer? to give people some sort of belief by sending interest rates for mortgages, credit cards, car loans even lower. the problem is, the world no longer thinks that that's enough. >> what we have is not a problem of interest rates. it's not that people are holding back from buying houses. no. what we have is, too many people are out of work, too many people that are still working that are afraid they're going to be out of work. and that's not something the fed can fix. >> reporter: and with those nervous consumers holding back, not spending, businesses aren't making as much money. they're not hiring. a vicious cycle. so, where in the world are the engines to pull us out? not even china anymore. those factories "world news" visited just a year ago? your government helps you produce what we see here? even with that help, so many factories there marking a sharp slowdown. and with greece nearly out of money and europe unable or unwilling to bail it out, markets there also all down. >> they've been kicking the can down the road for so long, and that's really what we've been doing here in the u.s., eventually you're going to have to solve the problem. >> reporter: and while we all wait for those solutions, how do you protect yourself if there is another recession coming? experts say don't miss out on an easy way to save a lot of money. a 30-year fixed mortgage five years ago? about $1,207 a month. today? $725 a month. that's a savings of nearly $500. and financial planners say the banks that have made it so difficult to get the new mortgage rates, don't let them win. they say you can beat them at their own game. for one, bettering your credit score now. so don't be afraid that these mortgage rates are out of reach. you can bring your credit score up -- >> sure. >> reporter: and quickly. >> you can bring it up within a matter of months. >> and any other tips for everyone tonight, david? >> reporter: very simple tips, diane. when you pay your credit card balance, if you pay just $10 more than the minimum due, that will help up your credit score. and one other piece of advice, once you get it down to zero, as so many americans have, they say hold onto the credit card with a zero balance for months. that helps to bring your credit score back up to take advantage of those mortgage rates. >> all right, david muir reporting from the stock market tonight. and we move on now to that uproar, the passionate debate under way tonight about america and the death penalty. galvanized by the death of a man named troy davis. last night, he was executed amid cries for mercy and his own fervent declarations. abc's legal expert dan abrams will be here to give us the big picture in just a moment. but first, our steve osunsami takes us through the dramatic events of the past 24 hours. >> reporter: troy davis' supporters are still anguished today that their screams for mercy went unanswered. that a man they believe is innocent was killed. and nervous police officers called for reinforcement. >> i think it's tragic that the police officer died but i think it's even more tragic that this man who could be innocent was executed. >> reporter: davis admitted he was there that day in 1989 when someone was trying to steal beer from a homeless man in savannah. offduty police officer mark macphail tried to break up the fight and was shot and killed. overnight, davis declined a sedative and in clear mind, just moment before he was executed, he looked into the eyes of macphail's family and swore he didn't do it. >> to the macphail family he said, of course, "i did not personally kill your son, father and brother." >> reporter: here's the issue -- davis was convicted with no murder weapon, no dna test, no conclusive physical evidence. astoundingly, seven of the nine eye witnesses now say davis is innocent, that they lied and that the real killer threatened their very lives if they ever spoke a word. the court said none of this was enough for a new trial and the police officer's family remains convinced that davis was the killer. >> my father did not get a chance to say his bit. he was taken from us too soon. too early. >> reporter: davis' supporters argued that no one cared to dig any further for the truth, because black men without resources are treated differently in the court, especially in the south. >> the dynamic here, if troy was white, it may have been different. if troy was rich, it certainly would have been different. >> reporter: davis' supporters include a former president, prison wardens and the former head of the fbi. there are many people who hope and believe this is a turning point in the debate of the death penalty, with so many people wondering here, diane, whether justice was served. >> all right, steve osunsami, our thanks to you. and i want to bring in dan abrams right now. 35 executions this year in the united states. more than 15,000 in the nation's history. what about race? how does it factor? >> reporter: well, currently, more than 50% of the people who have been executed have been white. sitting on death row? 44% white, 42% black. that's disproportionate to the public at large, which is less than 13% black. but the race of the victims becomes very important. since 1976, 77% of the victims in death penalty cases have been white. 15% black. 6% hispanic. and geography. another really important factor. 80% of the executions have been in the south. less than 2% in the northeast. but it's worth pointing out that in the troy davis case, seven of the jurors were black. >> all right, but -- so race has some complicating factor in there that has to be examined further. the u.s., as we know, is the only western nation to have the death penalty. and we heard the sentiment in this country, at the republican debate, when governor rick perry was asked about his record, basically, as a person, a governor, who had executed more people than any other governor in history. listen. >> if you come into our state and you kill one of our children, you will face the ultimate justice in the state of texas. and that is, you will be executed. >> reporter: gallup polls have been relatively unchanged in the last five years. 64% of americans support it. 29% oppose. not since 1971 has it been less than 50%. >> all right, dan abrams, a lot to explore in the days ahead. thank you so much. and we turn now, are you friend or enemy? that is the question posed by the nation's top military officer tonight, about pakistan, our critical ally on the war on terror, a nation that receives billions of dollars from the u.s. admiral mike mullen directly accused their secretive spy agency, the isi, of playing a role in attacks on the u.s., like the one at the u.s. embassy in kabul. and it sent shockwaves around the globe today. abc's martha raddatz with more. >> reporter: the attacks have been spectacularly bold. >> rpg, get down! >> reporter: machine gun fire and rocket-propelled grenades raining down on the u.s. embassy in kabul, resulting in a day-long battle. and the truck bombing of a u.s. base that left 77 soldiers wounded and five people dead. these are the attacks that the chairman of the joint chiefs of staff, mike mullen, today blamed directly on the pakistani government, accusing its spy agency, the isi, of helping the terrorist group, known as the haqqani network, every step of the way. >> with isi support, haqqani operatives planned and conducted that truck bomb attack as well as the assault on our embassy. >> reporter: never before has an american official so publicly linked the government of pakistan to attacks on the u.s. a sickening accusation, given that the u.s. has been giving pakistan more than $2 billion a year, money to fight terrorism, not support it. the white house says it will not discuss any options that are now being considered, but if this is the opening round in a war of words, mullen began with a rocket attack, diane, and pakistan will most surely fire back. >> thank you, martha raddatz, reporting in from washington tonight. and back here in this country, in a sense, it's chicken little eve, because tomorrow night, we're all going to be looking at the sky for something falling out of it. that old massive satellite, the size of a bus. so, what is the latest tonight on where it will land and if it should hit your house, we had a question. will insurance pay? abc's neal karlinsky is in los angeles, at command central for the satellite watch. >> reporter: the satellite is burning through its final hours of life at 1,800 miles an hour. these are actual pictures of it tumbling through space, taken through a telescope with a specially designed camera. the estimates of where it will go are still far from exact, nasa says it won't hit the u.s. but tonight, these spaghetti models of its track put out by the air force show at least a possibility that america could get hit. >> we believe the risk is sufficiently low, that no one needs to change their behaviors. >> reporter: only 26 chunks will survive, but they won't come in like missiles. each piece will drop straight down at hundreds of miles per hour from the point it breaks the atmosphere. all told, over an area of some 500 miles. standing right under it, an unlucky person, 1 in 3,200 that someone on earth will get hit, likely wouldn't have time to see it coming. though there have been cases where people have heard space junk whirling through the air. these huge chunks of satellites actually landed in a village in thailand and a farm in mongolia, frightening examples of what could be coming down. is there concern that someone will get hurt one of these days? >> sure. that is the concern. >> reporter: amazingly, if a piece like this happens to go through your house, insurance will likely take care of it. we found this in a standard homeowner's policy. damage from falling objects including self-propelled missiles and spacecraft, all covered. here inside one of the specialized facilities that is tracking the satellite, take a look at the yellow circle just off the coast of chile over there. right up to the minute, that is the best guest as to where the satellite will splash down, likely tomorrow night. but they caution, this is changing as they get more data, all the time. and here's the strange part. once it enters the atmosphere, they lose track of it. so unless someone actually sees it going down, they likely won't know for many hours actually where the satellite has landed. diane? >> okay, we're all going to be looking up tomorrow night at this time. thank you, neal karlinsky. and a note about something we've never seen before. chelsea clinton, interviewing mom, the secretary of state. it was at the clinton global initiative this afternoon. and there was one little revelation we thought parents and children everywhere would recognize. >> as your daughter, i remember when i helped you send your first text message. >> yes. that wasn't very long ago, i have to tell you. both bill and i, i mean, if you don't tell anybody, i'll tell you. we are primitive. >> my father still refers to the internet as the world wide web. well, thank you, mom. and i'm once again grateful you are my mom and my secretary of state. >> thank you. >> thank you, all. >> you can see why i don't win many arguments at home. >> the daughter emerges. and still ahead on "world news," why a superstar announced she's going into battle today for a teen who was bullied. a facebook double take. what did the real mark zuckerberg reveal today? and what about family dinner that might change your child's life? 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"jamey rodemeyer, 14 years old, took his life because of bullying must become illegal. it is a hate crime." gaga vowed to take up the cause with president obama. and jamey's mother said he will be laid to rest wearing a shirt emblazoned with a three-word call to action. "born this way." the anguish of those parents is so heartbreaking. in such cases, experts say it's best for parents to focus on open and trusting relationships with their kids, rather than spying on their social media accounts. and as ever, diane, encourage their at-risk kids to share their stories. let them be heard. >> crushing, crushing what is happening to some of these teens. thank you so much, josh elliott. and coming up, what jaycee dugard did today, for other children across the country. nevw when a moment might turn into something more. and when it does men with erectile dysfunction can be more confident in their ability to be ready with cialis for daily use. cialis for daily use is a clinically proven low-dose tablet you take every day, so you can be ready anytime the moment's right. ♪ [ man ] tell your doctor about all your medical conditions and medications and ask if your heart is healthy enough for sexual activity. don't take cialis if you take nitrates for chest pain as this may cause an unsafe drop in blood pressure. 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[ deep breath ] thank you! that's the cold truth! thank you! sometimes life can be well, a little uncomfortable. but when it's hard or hurts to go to the bathroom, there's dulcolax stool softener. dulcolax stool softener doesn't make you go, it just makes it easier to go. dulcolax stool softener. make yourself comfortable. a big facebook announcement today, and it began with comedian andy samberg pretending to be mark zuckerberg. the real zuckerberg then appeared and revealed what he calls a new way to express who you are. it's called timeline, a kind of virtual scrapbook, tracing the most important moments of your life from birth to graduation, your wedding, your children, their first steps. and it has what facebook calls a way back feature that can add details from before the age of the social network. jaycee dugard, who survived 18 years in captivity held in a backyard bunker by a convicted sex offender, phillip garrido and his wife nancy, today announced she is suing the federal government for the failure of parole officers to monitor garrido and even though they came to the home many times, find her. jaycee did it, she says, because of the message she wants to send to victims everywhere. >> why not look at it? you know, stare it down until it can't scare you anymore. >> the money will be donated to the foundation that she set up to help other victims. and coming up, what family dinner can do to make you a success in life. right on the numbers! boom! get it! spin! oh, nice hands! chest bump. ugh! good job, man. nice! okay, halftime. now, this is my favorite play. oh! i'm wide open. oh, fumble. fumble. don't want to fumble any of these. 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[ slap! slap! slap! slap! slap! ] [ male announcer ] your favorite foods fighting you? fight back fast with tums. calcium rich tums goes to work in seconds. nothing works faster. ♪ tum tum tum tum tums finally tonight, as you sit down to dinner, something to think about. there's new research from the prestigious columbia university showing that putting the family back in family dinner can make all the difference in the success of a child. abc's dan harris explains. >> reporter: the tidy tableau of family dinner on "leave it to beav beaver," mom in pearls, dad in a tie, gathering for a calm, orderly meal, now feels, for many of us, hopelessly unattainable. >> beaver? anything happen in school today? >> reporter: in the 1950s, most families ate together five to seven nights a week. these days, with both parents working and the kids up to their ears in extra curriculars, it's more like one or two nights a week. but today's new study says family should make dinner together a priority. researchers found teenagers who don't sit down to frequent family dinners are four times more likely to use tobacco, twice as likely to drink alcohol and two and a half times as likely to smoke pot. tonight, dan gilbert is cooking dinner with his wife and three children. >> most important time of day for communicating. >> what's that, chicken? every night it's [ bleep ] chicken. holy god almighty. >> reporter: but as made clear in movies like "little miss sunshine," family dinner is not always easy. parenting experts have some simple tips for reclaiming family dinner. stem number one? turn off the television. two? get the children to help plan and cook the meal. and three? to get the conversation started, have everybody at the table list the best and worst things that happened to them today. times have definitely changed since the cleavers, but whether a family today means one parent, two parents, same sex parents or grandparents, there is still something simple and magical about sitting face to face and sharing dinner. >> thanks for a nice supper, mom. >> reporter: dan harris, abc news, new york. >> go online at abcnews.com and tell us what you love about family dinner. don't forget, "nightline" later. and we'll see you right back here tomorrow. good night. tuition take over at uc berkeley. we're live with a group of protestors who occupy aid building. >> the banks have been bailed out. and we seem to be getting kicked out. >> human cost of the bay area foreclosure crisis and a list of legislation that might help end it. >> one of the silicon valley big business is charting a new course tonight. meg whitman chose kren to lead, the hp way. >> changes coming to your facebook page. not going over all that well in the bay area so far. there wasn't much applause at the end of the trading day. another big selloff on wall street trigger bid fears of a double dip recession. good evening, everyone. >> the market experts were stunned. wall street does not like the feds recovery and today took it out on your 401(k). the dow fell below 10,600, then recurred somewhat. and economic indicators suggest the economy will expand only slightly, in fact up to 10 indicators used to calculate this number, only four went up this month. there is no end to sight to the foreclosure crisis, sad to say. >> i'm just dying. because i just, you know... i'm afraid. >> viviane is scheduled to be evict frtd home she's owned 13 years. the bank foreclosed. she