chuck today and david gregory, who by the way will moderate a special edition of "meet the press" tomorrow morning, "who is paul ryan?" 9:00 a.m. eastern, that's 6:00 a.m. in the west for early risers, given our olympic sunday broadcast schedule. and still ahead, as we continue on a saturday night from london, another big day for the u.s. women, faster and stronger than before, now more decorated than some countries competing here. and later, it's one of thes most closely guarded secrets as we just discussed, every four years, but was everything about today's romney rollout as carefully planned? it's the little things in life that make me smile. spending the day with my niece. i don't use super poligrip for hold because my dentures fit well. before those little pieces would get in between my dentures and my gum and it was uncomfortable. even well-fitting dentures let in food particles. super poligrip is zinc free. with just a few dabs,

it's clinically proven to seal out more food particles so you're more comfortable and confident while you eat. so it's not about keeping my dentures in, it's about keeping the food particles out. [ charlie ] try zinc free super poligrip.

those little things for you, life's about her. but your erectile dysfunction - that could be a question of blood flow. cialis tadalafil for daily use helps you be ready anytime the moment's right. you can be more confident in your ability to be ready. and the same cialis is the only daily ed tablet approved to treat ed and symptoms of bph, like needing to go frequently or urgently. tell your doctor about all your medical conditions and medications, and ask if your heart is healthy enough for sexual activity. do not take cialis if you take nitrates for chest pain, as this may cause an unsafe drop in blood pressure. do not drink alcohol in excess with cialis. side effects may include headache, upset stomach, delayed backache or muscle ache. to avoid long-term injury, seek immediate medical help for an erection lasting more than four hours. if you have any sudden decrease or loss in hearing or vision, or if you have any allergic reactions such as rash, hives,

swelling of the lips, tongue or throat, or difficulty breathing or swallowing, stop taking cialis and get medical help right away. ask your doctor about cialis for daily use and a 30-tablet free trial. we're back from london. this music must mean we have reached the spoiler alert portion of our broadcast tonight, so if you don't want to know, just turn away from your tv for just a moment. we'll tell you when it's okay to look back. u.s. men were back on the track tonight in the 4x100 meter relay, a race so face a team tied the world record and still didn't win the gold medal, and here's how that race turned out, and it's now safe to turn back. the u.s. women were also in a relay tonight capping off a day that saw more medals up for grabs than any day of competition so far as we near the end of this history-making run for the american women at

these games, which nicely brings chris jansing along with us tonight. good evening. >> good evening, other great day for the americans. if u.s. women were a country, they would be third in the gold medal standings. in one women's relay that you won't see until tonight, well, you're not going to believe the finish, and in the midst of it all, a big debate about u.s. women's basketball. here's the question. >> maya moore on the run. >> reporter: who is the real dream team? tonight u.s. women's basketball laid impressive claim to the title. >> parker catching and finishing. >> reporter: already leading at the half, they came back and put on a clinic for the win over france. >> you can stamp the gold medal, "made in the usa." >> reporter: their victory adding to an extraordinary legacy. usa women have now won 39 consecutive games in the olympics, five consecutive gold medals. it's getting to be a habit. >> i think that our success here kind of speaks for itself. >> reporter: it's not just the

record number of gold medals american women have won that's impressive, the diversity is mind-boggling. they rowed faster, jumped higher, kicked more intensely, shot more accurately and shattered world records. women swimmers alone won 15 medals. the gymnasts, too, five medals. they did it better than anyone else in the world, on sports' biggest stage. what does it mean to you to know you are the best in the world at something? >> it's really special. we want other people's daughters to emulate us off the court as well as on the court. >> reporter: there is a theme that runs through all this success, lessones for the millions who have watched these phenomenal achievement with awe and wonder, one from a 17-year-old boxer from flint, michigan, who started a whole new chapter in america's olympic boxing history.

z>> boxesing is not just a man' sport. >> reporter: allyson felix worked her way through three olympic games to impressively win olympic gold. >> you keep grinding it out and eventually it might come together. >> reporter: tonight it came together again when she ran the second leg of the 4x400 team that absolutely crushed the competition, her third gold medal of these games. at every turn we watched a struggle rewarded. the stereotype smashed. >> it doesn't matter how we look when we win the gold medal. we just won the gold medal. it doesn't matter, you know what we wear. we're a part of team usa and there's no greater color than the american flag. >> reporter: they take home gold and leave a legacy. >> that's pretty awesome, to be able to look up to somebody, a girl on their team, somebody been a four-time olympian and know that i could be that girl or woman or whoever. i could be that olympian. >> and the guys aren't done winning medals yet other.

tomorrow the other dream team, u.s. men's basketball and news flash, they're the favorite. >> i've heard of that. quick check on the medal count by the way with one day to go the u.s. is in the lead, team usa of course badly wants to be at the top of that medal count and beat china, when the flame here is extinguished and these games are over. we are back in a moment with tonight's spectacular show in the sky, and how nasa says you can help them. to the olympic games. getu ♪ you can't wish your way onto the podium. ♪ you can't buy it or hope for it. ♪ it's not enough to dream about it. ♪ luck didn't get me to london. i swam here.

♪ starts with arthritis pain and a choice. take 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. just two aleve can keep pain away all day. would you mind if to be i go ahead of you?omer. instead we had someone go ahead of him and win fifty thousand dollars. congratulations you are our one millionth customer. people don't like to miss out on money that should have been theirs. that's why at ally we have the raise your rate 2-year cd. you can get a one-time rate increase if our two-year rate goes up. if your bank makes you miss out, you need an ally. ally bank. no nonsense. just people sense. ooh gas, take an antacid. oh, thanks. good luck. good luck to you. doesn't he know antacids won't help gas? oh, he knows. [ male announcer ] antacids don't relieve gas.

gas-x is designed to relieve gas. gas-x. the gas xperts. [ thunk ] sweet! [ male announcer ] the solid thunk of the door on the volkswagen jetta. thanks, mister! [ meow ] it's quality you can hear and feel. that's the power of german engineering. right now during the autobahn for all event get great deals on a 2012 jetta.

there's been another attack on american service members in afghanistan, it happened last night in helmand province, where three u.s. marines were shot to death by an afghan worker on a military base. earlier on friday, three other marines were killed by an afghan policeman. both attacks carried out by supposedly friendly afghans who then turned on u.s. forces. a still unfolding story in neighboring iran tonight, where two strong earthquakes, a 6.4 and a 6.3, struck the northwest part of the country today. iranian media reports say at least 180 people were killed, more than 1,300 injuries, those are early reports. at least half a dozen villages were said to be levelled while 60 other communities suffered widespread damage. an enormous sink hole in

louisiana continues to cause concern. it's near bayou corn in assumption parish, where the earth is already squishy marsh and covered in water, and the hole is swallowing up vegetation, including 100-foot-tall cypress trees. there's a fear it's related to an underwater salt karch. 'also dangerously close to a liquid butane well. one of the local folks say the bubbles rising from the bottom make the whole area look like a boiling crawfish pot. sky watchers should be on alert tonight across america, because tonight is the height of the persiod meteor shower. if you're lucky enough to have clear skies, grab the kids, a therm thermos, snacks and coffee and get a chance. nasa has an app for folks to count the number they see and

report the results, send us your photos as well. when we come back on a day when everything had to go according to plan, most things did. every day, thousands of people are choosing advil®. here's one story. i'm sean. i switched to advil® 10 months ago. biking can be really tough on the lower back and your upper thighs. you have some nasty aches and pains. i really like advil® because it takes care of it all. neck ache, shoulder pain and definitely lower back pain. i use advil® because my wife, she's a nurse, she recommended it. [ male announcer ] make the switch. take action. take advil®. and if pain keeps you up, sleep better with advil® pm. ready or not, here i come! ♪ found ya! you always find me. you always hide here. [ male announcer ] tim and richard smucker have always loved the taste of just-picked fruit. so it's no wonder why today

smucker's makes the world's best jam. for five generations, with a name like smucker's, it has to be good. for five generations, for many, nexium helps relieve heartburn symptoms caused by acid reflux disease. osteoporosis-related bone fractures and low magnesium levels have been seen with nexium. possible side effects include headache, diarrhea, and abdominal pain. other serious stomach conditions may still exist. talk to your doctor about nexium. [ male announcer ] start with a simple idea. think. drink coffee. hatch a design. kill the design.

design something totally original. do it again. that's good. kick out the committees. call in the engineers. call in the car guys. call in the nerds. build a prototype. mold it. shape it. love it. give it 40 mpg. no, 41. give it a huge display. give it a starting price under 16 grand. take it to the car shows. get a celebrity endorser. he's perfect. "i am?" yes, you are. making a groundbreaking car. it's that easy. ♪ finally tonight, we want to wind up where we started off. it's a new day in the gop campaign, a new man alongside mitt romney. we've got 87 days to go, two conventions to go, and as they say, a week is a year in

politics, and the scrutiny is already ramped up now. events like today in norfolk, virginia, are all about the details. starting with the unambiguous battleship backdrop, very little goes unplanned at these events including romney's appearance, tie, rolled up sleeves, no tie and ryan, jacket, no tie. by the way the last team to use a boat backdrop was bush/quayle back in '88. team romney did a brilliant job at faking out the media, though the media hate to admit it, reporters staking out ryan's wisconsin home were convinced he was hold up inside, until he showed up in virginia. there will be the inevitable professional sniping in the world of political advance teams, where crowds are supposed to fill in any gaps, and everyone is expected to be enthusiastic and not otherwise occupied. the whole idea of a big vp

rollout is still new in the modern era. vice presidential candidates used to be decided by the party and the ticket got smooshed together. fdr barely knew harry truman before they ran together. speaking of fdr his early vice president, john nance garner was the last house member to be elected vp, and that was 80 years ago. if elected, while ryan wouldn't be the youngest ever vp, he would be the first from wisconsin and the first named paul, and on social media, where folks gathered to talk about today's selection, the talk was about the hair of both gop candidates. as laura ingraham put "romney-ryan was the best hair since kerry-edwards." of course that's where the comparison ends. as they say, let the games begin. it's perhaps fitting as these games get set to wind down, the campaign gets set to enter a whole new phase and we'll, of course, be there to cover it

all. that is "nbc nightly news" for this saturday tonight. olympic coverage tonight 8:00, 7:00 central in prime time. i'm brian williams reporting again tonight from london. lester holt will be here with you tomorrow night. we'll look for you from new york on monday. enjoy the rest of your weekend. good night. -- captions by vitac -- www.vitac.com mitt romney's plan: huge tax cuts for millionaires, tax breaks for oil companies and corporations that ship jobs overseas, adding trillions to the deficit. president obama's plan: a balanced approach that asks the wealthy to pay a little more,

eliminates tax breaks for outsourcing and oil subsidies, cuts government spending, and reduces the deficit by four trillion.