but a large-scale clinical trial showed that a c.t. scan, rather than a chest x-ray, could detect smaller tumors and reduce mortality on higher risk patients. lung cancer kills about 160,000 people a year. >> on a lighter note, there's a high-tech answer to take care of a low-tech problem. the 49ers new stadium will be equipped with a bathroom detector. a new app that will let fans know where the shortest lines are for the bathroom. it doesn't just handle the needs. it takes care of your wants. the app will identify the shortest lines for beer and food. >>> good evening. i'm dave feldman in the comcast sportsnet newsroom. the trade deadline's tomorrow. but the oakland a's made a move today, requiring alberto callaspo from the angels. he's hitting .252 with 5 homers and 36 rbi this season. >>> the blue jays and a's. snake eyes from g.i. joe throwing out the first pitch. that's athletic. jose bautista, homers to left. his 25th. 1-0, jays. top five. 2-0. bonifacio homers to right. it's 3-0, jays. and mark buehrle will get chris young to p

annual c.t.cans could save now thousands of lives every year. >>> police believe a man was drunk when he drove off a cliff and plummeted 40 feet to the beach below. and the car landed upright, on its wheels and the driver survived. he was hoisted back up to the road, followed by his car. the driver suffered major injuries. but they're not considered life-threatening. >>> a video from russia is going viral. and plenty of skepticism. watch the woman standing against the wall, when a thief grabs her phone. she attacks and drops him with a kick. then, hitting him. she grabs her phone and runs off. leaving him on the ground with other unsympathetic walkers just passing him by. plenty of internet commentators say the whole thing was staged. >> that looks a little -- hold on. look at it again. >> he just turns around. >> he turns around. >> and he kneels there. >> he's singing soprano. >> i don't know, if she hit him where it hurts, couldn't he be holding to that. >> why would you turn around? >> right.

wall street and it's backed by supposedly buying buying gold and buying silver and these big energy c.t.'s go and buy it up it's a big difference in the senate east because it's something like a g l d or they can do whatever they want without physical supply so they can actually be using the supply against their own investors versus something like a sprout asset management where you know what you've got you can get your gold from silver from at any time if they're totally different in the way they operate let's talk about gold leasing is it possible for this deal do to lease that's gold and we know about central banks we've seen their gold how do these put together if at all well gold lace english part of the gold price suppression scheme scam started you know way back when where banks would borrow go from central banks still the proceeds into the marketplace and use them to run their operations they could do instead of spending way back when six or seven or eight percent to borrow money they could borrow central banks very cheaply and this led into the price oppression scheme which was

wall street and it's backed by supposedly buying buying gold and buying silver and these big energy c.t.'s go and buy it up it's a big difference in these energies because it's something like a g l d or they can do whatever they want without physical supply so they can actually be using this supply against their own investors versus something like a spot asset management where you know what you've got you can get your gold and silver from it any time if they're totally different in the way they operate let's talk about gold leasing is it possible for this deal do to lease that's gold and we know about central banks we've seen their gold how do these put together if at all well gold lace english part of the gold price appreciation scheme scam started you know way back when where banks would borrow go from central banks still the proceeds into the marketplace and use them to run their operations they could do instead of spending way back when six or seven or eight percent to borrow money they could borrow central banks very cheaply and this led into the price oppression scheme which was s

. >> by coincidence i had just recently seen c.t. vivian, he was one of martin luther king's top aides leading those demonstrators trying to vote in selma -- >> uh-huh. >> -- when the infamous sheriff jim clark wouldn't let them pass. here is the scene. >> you are breaking the injunction by not allowing these people to come inside this courthouse and wait -- this courthouse does not belong to sheriff clark. this courthouse belongs to the people of dallas county. and these are the people of dallas county. and they have come to register. and you know this within your own heart, sheriff clark. you are not as evil a man as you act. you know in your heart what is right. what you're really trying to do is intimidate these people by making them stand in the rain, keep them from registering to vote. and this -- this is the kind of violation of the constitution, the violation of the court order, the violation of decent citizenship. you can turn your back on me, but you cannot turn your back upon the idea of justice. you can turn your back now

then kind of comes back together, so it could look okay, you might not see a mile brain injury on a c.tt will look normal, but later, say with rubber band it doesn't work the same way anymore. in the same analogy, if you have a mild brain injury, some of those neurons will not work the same way that they had before the blast. >> so for some people, the worst may yet be to come? >> yes, it might be. >> dr. devi, thank you. appreciate you as well. >>> expecting another update from san francisco general hospital in just a few minutes. we'll be right back. meet the newest member of the quicken loans family: j.d. power and associates has ranked quicken loans highest in the nation in customer satisfaction... i say "family," because we've been blessed with this honor for 3 years in a row... rest assured we'll treat all of your mortgage needs with tender loving care. amazing client satisfaction: it's a quicken loans family value. call 800-quicken or go to quickenloans.com to experience it for yourself. >>> we'll have more on the plane crash in a moment here on cnn. but first, new developments o

where when we were able to get the c.t. scans and so on we were able to see there was gross instability of their cervical spines, thorasic spines, and lumbar spines as a result of this injury. >> reporter: meanwhile, some of the crash survivors returned to south korea today. and, the government in seoul ordered inspections of the engines and landing equipment for all boeing 777 jetliners owned by asiana airlines and south korea's national carrier, korean air. >> woodruff: for more on the accident and questions about the speed of the plane's landing, we turn to the chair of the national transportation safety board, deborah hersman. she's joining us from san francisco. welcome to the newshour. we heard you say today or confirm that the plane was coming in at a much slower speed than it should have been. what are the possible explanations for that? >> well, you know, we are looking at everything. certainly we want to look and see if there are easy explanations for this. but many times what we find is it's a little bit more com

you talk about screenings, you can add the c.t.ider high risk for lung cancer. it's very interesting, this is a departure in terms of screenings, but they say lung cancer is the biggest cancer killer out there. they've been looking for a way to screen for some time and they think people between the ages of 59 and 75 who smoked a pack a day for 30 years, high smokers, they are the most at risk. even if you quit within the last 15 years, you'd qualify. someone like your old colleague, chris, peter jennings, for example. he commented on his own smoking, he quit for awhile, returned to it. he may be somebody who would qualify for a screening like this. and the goal of lung cancer is to catch it early, because the reason it's so deadly is because it it spreads before people develop symptoms. >> just because you quit doesn't mean risk is gone. how do you benefit the test in terms of the c.t. scan with radiation? >> it's a legitimate concern and part of the reason this has been a long time coming, they are lower dose ct scans. you have to

recommending that people over 55 who are heavy smokers or who used to be heavy smokers get an annual c.t to check for lung cancer. researchers found that the benefits of the test can outweigh the negatives. lung cancer claims some 160,000 lives in this country every year. >>> and the scandal surrounding baseball star alex rodriguez is getting uglier. baseball commissioner bud selig is now reportedly preparing to invoke his right to suspend rodriguez to preserve the game's integrity. this is a rarely used power, which "the new york daily news" reports could lead to rodriguez being banned for life. he could also be suspended under the league's labor deal guaranteeing any suspension takes effect immediately. >>> and take a look at this. a man in san diego survived this. he drove off that 40-foot cliff, driving straight through a locked gate and then taking a plunge that was, in fact, death defying. somehow his car landed upright. so he is going to be okay. bad news for him, okay enough to face possible drunk driving charges. >>> and new details about the spectacular jewelry heist along the

so, the example is, the suggestion to not get an mri or not to get a c.t. scan. why?in the low back in adults are abnormal. >> 90%? >> 90% are rated abnormal. so if you get an mri, i guarantee you it's going to be abnormal. >> and then i think i have to do something about that? >> right. 40% of people on street with no pain have herniated disks. 70% have degenerated disks with no pain. so then we end up pursuing what we see on the imaging study which has nothing to do with your pain. >> i've hurt that people that suffer from back pain say it's the worst possible pain you can have >> well, you feel like you're going to die, right. you say this is so bad, do whatever you want, doc. if you want to operate, it's okay. >> yeah. >> you're the second doctor on his program today who said we should not necessarily look at all of these sophisticated tests as a prescription for what we should do. >> yes. we should do a physical examination which we're not doing. you know, we've lost the art of touching the patient. we're stuck on looking at the imaging study, lab studies, and yo