>> i'm pat lawson muse. it's been a solemn day of remembrance in honor of the 2,973 victim whose died in the september 11th attac. with bowed heads and heavy heart, mourners gathered across the country from new york to pesylvania to the pentagon. >> that is where president obama met with victims' family members and called on the country to renew its resolve to fight trimp right over on the potomac a coast guard exercise struck a sensitive nerve and ignited people's worst ars. >> we have team coverage on all the events of this eighth anniversary of the september 11 attacks, beginning with tracie potts. >> reporter: at ground zero, new yorkers paused four times. one for each moment the planes hit. one for each moment the towers fell. >> in our joys and in our sorrows, we know we belong to one another. >> reporter: for more than three hours they read the names of each victim, nearly 3,000 in all.

grace's husband caesar died in the first tower. >> eight years passed, but sometimes it feels like everything happened yesterday, the pain can still be so sharp. >> reporter: new york is remembering 9/11 and looking ahead, joining president obama's call to make this a national day of service. >> we will safe guard the memories of those who died by rekindling the spirit of service that lit our city with hope. >> reporter: in washington, the president and first lady observed a moment of silence at the white house before joining families in driving rain to honored 1 4 victims killed at the pentagon. mr. obama promised america won't give up on finding their attackers. >> in defense of our nation, we will never waiver. pursuit of al qaeda and its extremist allies, we will never falter. >> reporter: this afternoon, the obamas helped paint a habitat

for humanity call. his call to service. >> park david rothenberg. >> reporter: in shanksville, pennsylvania, bells tolled at the crash site where 40 people died fighting hijackers on a fourth plane believed to be heading for washington. >> never forget what they did here as they struck the first blow in this battle against terrorism. >> reporter: a battle that continues as america remembers. at the pentagon, a new program started today. victims' families are training volunteers to lead tours at the pentagon memorial and explain to visitors what happened there. tracie potts, nbc news, washington. for troops serving in iraq and afghanistan says marking today's anniversary helps remind them of the importance of the u.s. mission tll over people ar inme mb all o>>r people are remembering september 11th.

the borden bell was tolled in washington's national cathedral at noon, one for each year since the attacks. there was also a noon prayer service in memory of the thousands of lives lost and those affected. as part of the national day of service, a number of students and medical reserve corps members were at the middle school today. eight years ago a teacher sarah clark and a student from the northeast washington area were killed in the attacks. they were on american airlines flight 77 on their way to california when their flight was hijacked and crashed into the pentagon. at rfk stadium today, 200 volunteers spent this national y of observance and remembrance making quilts for the children deaf ployed troops. they sewed the images of the members into the quilt patterns.

d.c. cares mobilize volunteers for this project. the wife of admiral mullen presented the quilt to the wife and 2-year-old son of a sergeant who is serving at afghanistan. coast guard training exercise caused a real life stir along the potomac river this morning in washington. officials say a few news outlets misunderstood coast guard radio transmissions and reports shots had been fired at a suspicious boat. the president, the pentagon and the anniversary of 9/11. brian moar has that story. >> reporter: coast guard gun boats confronting a suspicious vessel a short distance from the pentagon and the president? and on the anniversary of 9/11? it sure sounded like a big story. >> no shots were fired. there was no suspect vessel. >> reporter: the coast guard says it was just a routine drill, but quickly escalated into a extraordinary misunderstanding on tv.

>> i listened to some of the radio traffic myself. i heard a coast guardsman say ten rounds have been expended. >> reporter: that radio traffic was part of the exercise. before it was all over, reagan national airport halted outbound flights and local and federal law enforcement agencies were scrambling for information. the coast guard says it trains like this all the time. >> no, i am not issue than an apology. because it's unfortunate it escalated to this level, what you are seeing here is the result of a normal me exercise. >> reporter: the brief scare brought inevitablepaomns csori to the air force 1 photo op over manhattan inapril. >> this is just a breakdown in common sense. this is a routine exercise that if it was conducted on september 10th or september 12th, no one would have paid attention. >> reporter: the media gets its share of the blame, too. >> this is the kind of story that requires the highest level of handling in balancing it

against the public's interest and the public safety. you really do have to check it out or the consequences can be very, very dangerous. >> reporter: brian mobc, n news, washington. >> cn released a statement regarding the coverage of today's training exercise. saying in partt i would have been irresponsieot n io t report on wha woe were hearing and seeing, and the news cnnel ha updated the story with the official explanation from the coast guard as soon as it was reported. health officials are urging people to get their flu shots early this year. secretary of health and human services kathleen sebelius was at tc williams high school in alexandria earlier today promoting the vaccine. she spoke to volunteers, students and the staff for getting the vaccine for the seasonal flu and h1n1 virus, as well. sebelius says it's especially important for pregnant women, health care workers and people with underlying issues to get their shots. >> it's infinitely safer to get the flu vaccine than get the flu

and potentially suffer the consequences. >> more than 200,000 people are hospitalized each year for the flu across the nation p. among them, 36,000 lose their lives. health officials say they are working with space to determine mass vaccine locations. it's bee another long day in orbit for the is"d bcovery" astronauts. they are ready for an end to their two-weekupply mission. the shuttle hyas been waved off its first landing attempt today because of unstable weather in florida. "discovery" is orbiting the earth again with the next chance to land after 7:00 tonight. mission control says the florida forecast is about the same. crews at edwards air force base in california are now standingna by in case nasa decides to land the shuttle there. we've gotten a whole lot of rain here in the washington area today. here is hoping for a drier weekend. veronica johnson. >> thanks, pat. part of the week is going to be

just fine. okay with some sunshine the other part kind of so-so. today a real tropical rain storm out there for some of us. areas that i thought along east i-95 got hit good with some puddles around an insurance in area. 0.8 inch of rain. some of the spots that did pick up over 1.5id inches, baltimore pax river, over an inch. dover delaware over three inches. atlantic city had four inches of rain. that low is north of us. look at the precip how it's sinking south. still rotating around and coming through areas mainly north of d.c. there's sti quite a bit of dampness in the cloud cover that will stick around for a while. temperatures are quite cool today. mid 60s and still holding. our cements here for the next couple of hours are going to be slowly falli into the low 60s by about midnight. light showers out there.

that is it on your fast forecast. saturday showers for some of us. i'll did he tile which locations in a few minutes. the promise of some sunshine for the weekend. >> thanks a lot. a warehouse blows up in capitol heights. >> a search for a hit-and-run driver. 19 people were hurt this morning when a charter bus collided with a metro bus in southeast washington. it happened during the morning rush on good hope road. sources close to the investigation tell news4 the driver of the charter bus was having trouble braking. all of the injuries were minor and everyone is expected to be okay. police are searching for the driver responsible for a deadly hit-and-run accident in prince george's county. they say jose perez of riverdale was trying to call annapolis road when he was hit. the driver kept on going. investigators have a lookout for a chrysler with damage. they say the front spoiler was torn off and it also may be

missing its left front hub cab. police are asking anyone with information to give them a call. firefighters are still trying to figure out what triggered an explosion at a warehouse in capitol heights. the explosion went off last night at the haske water works building on hamilton overlook. a window and two doors were blown out. several containers of nigtric acid was on the ground. the metro worker struck by a train yesterday remains in serious condition this afternoon. he was hit by a train in a tunnel along the yellow and blue lines in alexandria yesterday morning. rescue workers had to use an emergency escape hatch to get into the tunnel and free the worker. he was flown to the hospital. metro is investigating to determine what led to the accident. when news4 continues, incredible pictures as a man pumping gas is forced to run for

his life when a vehicle kareens out of control. >> predictions from the number one retailer to find out which gifts you might want to wait to buy. can a store tell you you can't pay with a hundred dollar bill? that's the question. ui

retailers are bracing for what could be a bleak holiday shoppingeaso walmart executives believe the season will get off to a late start this year. they say shoppers are not filling out their shopping lists as early as in previous years. consumer spending dropped significantly during the recession. walmart remains optimistic. the retailer is taking several steps to attract new customers and keep profits up. black friday is just a couple of months away.

the day after thanksgiving is traditionally one of the busiest shopping days of the year. the website dealnews.com is out with its annual predictions what deals will be hot. dealnews says shoppers will see 50-inch tv screens selling for under 900 bucks. 15-inch laptops under $400. up to 10% off imac book computers. look for discounts at name brand clothing stores like ralph lauren and american eagle. let's take a look at the rush hour ride home. ashley lindher is behind the wheel. >> things are very messy today. not only is it a friday and it's the first whole week back from summer, but it was also raining earlier. as you can see, recipe for disaster. this is the inner loop of the beltway. this is at university boulevard. it starts to slow well below this point in tysons.

let's go to springfield where we've got better news. 95 is quiet right now. headed southbound is away from us, continuing down towards woodbridge. you do pick up volume headed down toward dumfries into fredricksburg. back to you. >> thanks. a wedding worth celebrating again and again and a real world update. a couple of stories that sparked talk this week. let's check in with our reliable columnists. happy friday. >> happy friday. >> amy, you have been keeping an eye on our neighbors for "real world." what's going on with them? >> so many people in washington were up in arms when mtv's long-running reality show moved into dupont circle to be taping a new season. we watched very closely though and determined they are not making enough trouble, frankly.

they are being way too quiet. the biggest complaint is sometimes the cast members have fights onhe sidewalk and people who are standing around trying to listen to the fights can't hear. they are not loud enough. >> weant to hear more from them. >> no loud parties, nothing. no drunken brawls. >> i hear they have a curfew and stuff. the people who are doing the anti-"real world" d.c. blog have gotten so bored they haven't blogged in a month on this. one of the guys has been twittering like mad. everything that comes across about the "real world." he was earlier trying to dissect the evidence to demonstrate one of the cast members may have left the house. >> think he might have too much time on his hands? >> city government said for all the buzz, "real world" creates much less trouble, takes up much less space than your typical major movie that comes to shoot in d.c. because it's documentary style. >> no big trucks, no crew.

>> "real world" may be coming old news. >> there is that. >> we understand local opera star denise graves and her groom robert montgomery continue their wedding extravaganza this weekend. >> this is the best ever way to go over the top. they got married in a very quiet ceremony at the end of june, just the two of them at national cathedral. then they went to africa and did a traditional ceremony over there. saturday night they are doing a massive blowout, which is part of a five-day celebration that started wednesday night at an airport hangar in leesburg. th met on a plane to paris. they decided they should have some kind of airport theme commemoration. >> this is like the best ever. it's like picnics and spa days and frisbee and the big ceremony tomorrow night and a reception. >> she is a major diva and he is like the biggest kidney transplant specialist in the country. they've got to do it big.

>> and why not? anybody who sees them says they are like over the moon for each other. they are not quiet about being in love. they are shouting from the mountain tops. >> this is a marriage that better last after going through all this trouble. >> we can only hope. >> thanks a lot. have a good weekend. >> thanks. coming up, after a mon othn the run, a family'set snake is back home again. a change coming to favorite cleaning products, including lower prices. 's

loved pet snake back, more than a month after it slhered out of her apartment. the 3 or 4 foot long boa slipped out in july. crocker put up signs around the neighborhood and even offered a reward for thet snake's safe rern l thenast weekend, someone tetothake tthna s crossing ana reet and called crocker. now snake and owner are back together again. congratulations for them.

today the weather was not fit for snake or other creature. >> how about fish? >> can't forget about the fish, yeah. >> a lot of rain for some neighborhoods along east of i-95. we are still seeing showers out there right now. dampness later. that storm system that took so long to come together finally did. with wind and some rain. 63 the temperature right now. reagan national airport. dew point at degrees. shaky cam. northwest wind at 15, gusting to 22. we picked up again over 0.75 inch of rain today. look at that. this was at 11:00 a.m. today. this storm system off the coast. had a semblance of an eye to it. there was discussion as to why the national hurricane center didn't name this storm. the eye for this storm produced the worst conditions around new

jersey and delaware with a lot of wind and rain. 19-foot waves off the coast of new jersey. they had four, five, six inches of rain around new jersey, too, as well as 60 mile-an-hour winds. high winds. could have been a subtropical storm. right w it's just inland moving north. we'll have the rest of this system rotating through our area tomorrow. that's hanging back off to the west. in terms of rainfall totals, philadelphia close to two. over two inches in salisbury, maryland. again, still wind along the coast. there have been airport delays today around new york and boston. let's go ahead and zoom in then. i'll show where you most of that rain rotating through state college central pennsylvania, altoona. we are on the tail end, the southern most end of this storm as it pulls away. still we are going to see showers rotating through. mainly to the north of our area, northern montgomery, loudoun county right now. sinking south a little bit. it's pushing a little to the west.

martinsburg, you'll probably get a few light showers before long, too. that's the next couple of hours this evening. ocean city, 70 degrees the temperature. wind gusts 35 miles per hour. look at the rain in aberdeen up i-95. almost 3.50 inches of rain. right up in harford and cecil county got hit hard today. 67 the temperature here. 70s, close to 80 wilmington. close to 90 degrees down south there in miami. at least this weekend we'll get into the low 80s with a little bit of pattern change and high pressure moving in. we'll keep our eye on the gulf of mexico. there's been a lot of rain down there. there could be a tropical type system in development this weekend. here it is 8:00 a.m. tomorrow morning. showers just across northern maryland and moving out of here. temperatures tomorrow will rise into the low 70s. for your evening, 60 to 64. it will be cool. occasional light showers through the area. tomorrow morning, just some

cloud cover. again, with the rest of that low rotating through, tomorrow we uld still have wet weather lingering. 53 to 60 to start. low 70s, seven-day forecast in a few. >> thank you. still to come on news4 at 4:00, a man pumping gasoline has to runr deaear lifeif wn anothevehicle careens out of control and hits the pumps. mystery surrounding the disappearance of a yale student days before her wedding. plans for a tribute concert for michael jackson later this month canceled. ot

welcome back to news4 at 4:30 now. i'm pat lawson muse. >> i'm keith garvin in for jim handly. the coast guard will look into how its training exercise led into erroneous news reports

of shots being fired on the potomac today not far from the pentagon. the president had been there for the remembrance ceremony of the 9/11 attacks. the reports were based on radio communications that were part of the exercise. president obama attended a wreath-laying ceremony at the pentagon where 184 people were killed in the attack there. several family members of the victims also attended. it was one of the many rituals and dedications held across the country to remember this solemn day. we'll have live team coverage at the top of the hour. secretary of health and human services kathleenebelius at t.c. williams high school today promoting the flu vaccine. she says it is especially important for pregnant women, health care workers and those with underlying health issues to get the shot. more than 200,000 people are hospitalized each year because of the flu. on to the search for a popular medical student at yale university. she disappeared just days before her wedding, a wedding that was planned for this coming weekend.

the fbi is leading the investigation. jeff rossen has the story. >> reporter: less than 48 hours after she vanished, the fbi arrived at yale going through dumpsters and questioning annie le's friends. the involvement early in the case fuelling fears this isn't the story of a runaway bride, but something much more sinister. annie le may be the victim of a violent crime. this is the last image of annie, a surveillance photo as she walked onto a research lab tuesday at 10:00 a.m. that's it. >> disappearing at 10:00 a.m. in broad daylight, it doesn't get weirder than that. >> reporter: managing editor of the yale school newspaper. >> at approximately 1:00 p.m. that same day, a fire alarm went off and the building was evacuated. they can't trace her on the surveillance tapes. the building was evacuated, large crowds exiting the building. >> reporter: this 24-year-old medical student simply disappeared. her cell phone, purse, credit

cards and cash were all left in her office. annie hasn't contacted her family or her fiance, jonathan widawsky. friends say they were soul mates and she couldn't wait to marry him on sunday. they are working with police to track his bride-to-be. student speculation is running wild. >> she left her keys and her wallet and all her stuff, apparently. i think if she was running away from her groom she would take that stuff with her. >> it's a bad area. you need to be careful all the time. >> reporter: right next to the yale campus is a dangerous neighborhood? >> you have to be careful all the time. >> and aware. >> reporter: your dad called you today to say be careful. >> he was really concerned, actually. he said, did you hear about the woman who disappeared in a lab? >> reporter: in an ironic twist months ago, annie le wte an article called "crime andaf sety in new have" new haven is a city and all

cities have their perils, but with street smarts one can avoid becoming yet another statistic. this morning at 4'11" and only 90 pounds, the hope is she won't become one herself. >> jeff rossen reporting. we are told the woman's family is in new haven with her fiance. a man in police custody today in connection with the killing an abortion protestor in michigan. the shooting happened outside a high school 30 miles from lansing. no students were injured. all schools if the area were under lack doup for several hours. michigan state police say the suspect is linked to another deadly shooting. this morning the second shooting took place at a business and neighboring community. prosecutors believe the shooter singled out the victim because of his anti-abortion protests near the school. it looked like a scene from a movie. an out of control car slams into a gas pump and triggers a fire ball while someone on the other side is gassing up.

the whole iident is caught on tape. it happened in british columbia. you see a man getting gas for his car. getting out there and suddenly from out of nowhere, another car comes barrelling into the gas pump right across. fire erupts but the man pumping gas is able to get away unscathed. the driver and passenger in the other car escaped the inferno. that driver says he lost control of his vehicle when another car cut him off. still ahead, tracking the flu. how you can monitor how bad it is in your particular neighborhood. a new exhibit gives you the inside story on the miracle on the hudson, the us airways jet that landed on the river.

veronica johnson here. temperatures on the cool side outside. it's 67 degrees, the average high for october. showers rotating around that low north of us. damascus, a few showers across your area. heading towards germantown, brunswick and loudoun county, you'll get a few light showers. howard county with showers throughout the area along i-70.

a wet ride home f you. low pressure up from the north pulling away from the area. as it relaxes that precipitation around the low, opening up a little bit more and spreading down through our area. 59 will be the morning reading for the start saturday. 59. 56 frederick, 54 winchester. 58 fredricksburg. high temperature tomorrow about 77. could be a few showers around martinsburg, frederick and annapolis. sunday up to 82 degrees. sunday will be the prettiest day out of the weekend. sunshine hangs on for the beginning of next week. not just monday, but monday and tuesday. while see highs in the low to mid 80s beginning next week. right now next week is looking dry with temperatures cooling down a little bit. back to the 70s. sounds good. thank you. keeping track of the flu, a number of websites popped up recently that detail where the flu hit and where it may strike next. ogle has a site that tracks

internet searches for flu siformation around the rld. nce people often search for information on the web before going to a doctor, tracking the erwhher techlu c f spreading.the flu is another site is called heah p.ma it reports flu cases around the world and updates the numbers in realtime. do body creams expire? is there any difference between name brands and generic baby formula? >> how something in your childhood impacts your weight as an adult

a question today about body creams. is there a difference between generic and name brands? and can a store deny payment with a 100 dollar bill.

a viewer's name is theresa. hashsh se amoolnt5-h- daughte. she wants tohere is there is a difference bswe generic and name brand infant formula. >> you see that price difference. we did take your questionohe t ndad ag strunionmi trati. food and drug administraonorsmub ad .tiani e g th rip ministration. mu for formulas to rystut bhe t la heha tve same nutrient density, ticdensity, m baye rasmeamnd bes n more price and gicer en gic amds hehe te nutritional value as the name brand. if you don't have to go with a name brand out of shear whatever, they have the same nutritional value. >> good economic sense. our next question from michella in ro maryland. michellerio ta ede us t $1 bill in aretail store. the store wouldn't take your

money. >> we did call montgomery county co nserafumirs. busayessusiness choos tcclyll sepma bi onlyccept small bills, it on indicate wi th with a visible store, t m 0ore,re are fe are free toenre usese of a l de btimi tonill,he j enomination bill, ty jtus oha ttveos p the notice so you know in advance. so no surprises on that. >> setimes they don't take large bills late at night. > as long asposted.s f o qinuriouealnst from deborah. do body creams expire? >> we took this question to the fda and to bat ahnd bodyks a to get the answer. considersamo t od cam be a cosmetic product, so itreue required to provide .iterada exbaration date. ayhere t is opi there isatio date on bodioeatyn bod care pructs, but tre, are two xepss. antieete dee expiration dates and sun block containing products carry

expiration dates. bath and body works says most of its products are g o twne or two years ifr stopr got'vouot g "a sk "ask end s it tz o end it to li. now, coming up on news4 at 5:00, the battle is on. who wins favorite pizza for the next academic year? the taste tests is coming up o news4 at 5:00. and pizza, too. >> i'll taste it for u. >> thanks, liz. still ahead on news4 at 4:00, trying to clear a fuzzy brain? we'll tell you what resources say may help. and changes in store, including the price of some ofvoodts. favorile caning produc.

kids with low self-esteem may struggle with their weight as adults. >> a british study looked at

6,500 people assessed at age 10, then they looked at them again at age 30. children who said they felt worried or anxious more often or felt lower self-esteem were at a greater risk for being overweight or obese by their 30 hdbirtay. bie effects wereli stlory me s prominent in girls than .ysbo a new study ssuggest getting ep rele s canle clear fuzzy memory. researchers atichinga state university found lack of sleep may trigger a faulty memory. scientists have known sleep can improve memory, but this is the first study of its kind to look how incorrect memories are corrected by a lack of sleep. students can do better on tests getting more sleep than cramming all night. >> we know we need more sleep, don't we? let's get update on the weather. we need more sunshine. ndf summer.'s the end of summer. at the beach they take down the volley ball net.

if you look real close right there. they are taking them down. end of summer, everybody. the beach is still a great place during the fall this. camera here, the web cam courtesy of the kite loft.com in ocean city. right now we've got a north-northwest wind. 67 degrees, the temperature gechblt low 60s in frederick county, maryland. the showers are coming through mainly howard county, montgomery county headed toward areas like gaithersburg and aspen hill around clarksburg and damascus right now. even more showers into nthern loudoun county. temperatures tomorrow into the 70s. we'll still have quite a bit of cloud cover left. there is a chance for scattered showers, mainly north of our area. these areas here, howard county and up across frederick county, as well as northern loudoun county. that as the rest of that system

rotates through. beautiful sunday. we'll see sunshine throughout the area. temperatures in the low 80s. best day out of the weekend sunday. back to you. >> all right. thanks. coming up next, you heard the saying, what happens in vegas, stays in vegas. trouble these days, there isn't much happening there at all. we'll tell but efforts to entice you to visit. >> the planned tribute concert to michael jackson is off. find out what led he ca

on wall street today, stocks retreated a bit. the dow lost 22 points. the nasdaq closed three points lower. the new york stock exchange was up almost seven. there are some stories making news on the web this afternoon. >> procter and gamble looking for hot spots in business is

cutting costs for consumers. cheer will be a low-priced laundry detergent. tide basic will be less than regular tide. procter and gamble hard hit by the economy is making a play to win back customers. organizers of a tribute to michael jackson are postponing the event now which was supposed to take place later this month in vienna, austria. instead a concert will take place next year in london. too many performers had scheduling conflicts. it's not clear when next year's london tribute will nak place. this is not the actual mythical sasquatch itself. boaters and residents say they mostly just enjoy waving to the statue as they pass by. do you remember these scenes from outside miracle on the hudson landing of the us airways

plane? thanks to steve malland, we are now seeing inside the plane. thskoo ltht look at the oxygen compartments open, seats stripped of floatation devices. the exhibit of photographs is called "brace for impact" and opens in a brooklyn warehouse gallery. the reception has taken a toll on the travel and tourism industry. a lot of americans have decided just to stay closer to home and save money. it's also forcing many popular vacation destinations like las vegas to think differently and to come up with deals to lure people back. jane wells has more in today's nbc news "insider report." >> reporter: what happens in vegas stays in vegas, but not much is happening because no one's staying. how scary was it in the spring? >> it was as tough as anything

i've been through. >> reporter: jim is ceo of mgm mirage which nearly broke the bank last spring trying to finish up its massive city center complex in the middle of a recession. elsewhere on the strip, other projects sit half-finished, some in bankruptcy. visitors are starting to come back. why? vegas is cheap. rooms can be had for as little as $31 a night. >> it is a great deal. we hope to improve that a little bit as we move forward. i think we've seen the bottom, peonally. >> reporter: yale rowe helps run the hardrock which is putting the finishing touches on this expansion. this suite comes with not one, but two dancing poles. two years ago ruffin sold land here at the top of the market for a record billion dollars plus. this year he bought treasure island at what may be the bottom of the market for $750 million.

>> i think we got a good value. >> run says vegas bookings are picking up for next year. it's hed the convention business will rebound. assassin city bets the recession can't go on forever. >> we think they all have to come back. why not? we have the cheapest rates? why not come to vegas for $100 a night rather than chicago at $300? >> jane wells, bcussusesin news, las ves.gaes later tonit,he t business of staying healthy. you may only need one shot to prott lfyoseur from swine flu, owbu hant msey people will get b ckesioref a vaccine is available? that's tonight at 7:00 op "nightly news" after news4 at 6:00. that's news4 at 4:00. news4 at 5:00 starts right now. tonight at 5:00, a bus crash, a tour bus full of children collides with a metro bus. >> stimulating your brain in

technology may help families cope with parkinson's disease. >> honor, service and remembrance, a day for americans to pay triblt on the eighth anniversary of the 9/11 attacks. on this day came a security scare on the p omoracriver. good afternoon, i'm wendy rieger. >> i'm keith f jim handly. that coast guard was a training drill between the 14th street bridge and memorial bridge. the radio call announced shots fired miles away from where the president was at a 9/11 service. tom sherwood is here to explain. >> reporter: fbi rushing to the scene, reporters scrambling to find out what's going on. turns out nothing was going on. the u.s. coast guard routinely cruises the water of the potomac on patrol and for training. fridayorning it was different. >> president of the united states. >> with president obama nearby at the pentagon for the eighth anniversary of the september 11th a