. >>> medal of honor recipient captain rowberg rang the new york stock exchange bell. >>> combating obesity one step at a time. how a regine regime is paying off in the classroom. we'll be right back. now and then we all appreciate a little help. through covered california, health insurance could cost less than you think. and most uninsured californians could get help paying for it. to find free, local, in-person help visit coveredca.com four out of five people may not agree on carne asada or carnitas... but four out of five who got their health insurance through covered california got help paying for it. find out if you could be one of them at coveredca.com enroll by december 15th to be covered by january 1st. childhood obesity. the teacher behind the 'daily m movement says not one childt her school is overweight bee of the exercise regimen. rain -- or shine -- the stus jog -- or walk their daily around the school yard. kids are getting fit and its payg off in the classroom too. (sot - elaine wylie/head teacher) they go back into class focused -- bright eye cheery. applecheeked like childr

florence rowberg attended walter john high school in bethesda. he was seriously injured in afghanistan three years ago when he tackled a suicide bomber. >> he was part of a security team escorting a colonel to a meeting with an afghan official. he said his instincts and training kicked in as soon as he realized the man was a threat. >> all i could think of, we have to get him away from the boss, the guy. just get him away as far as we can. talking about eight seconds here. there's no -- you just react. you trust your training, you trust your instincts, you trust that you are -- you already have the internal fortitude to go out there and do the job that you're tasked to do. >> four men were killed in the attack. officials say many more would have died if rohberg hadn't jumped into action. he's had 30 surgeries on his leg. he can no longer run. his story will be on "nbc nightly news" with lester holt. >> incredible show of courage. i don't think most of us have what it takes to do what he did. >> thank god for the guys who join the military and do

. >> four men were killed in that attack but officials say many more would have died if rowberg hadn'tumped into action. he's had more than 30 surgeries on his leg. he can no longer run. president obama will present him the medal of honor tomorrow and tomorrow lester holt will have him. >>> the interim director of the office of professional management could get the job full time. president obama is nominating beth cobert. millions of federal employees accounts were compromised. the former director resigned. >>> taking a stance against hate. the incident on campus that had this crowd of students rallying at virginia tech. >>> in bound 4 here this morning and your travel times coming up in a couple of minutes. >>> first though, hidden trouble that could be hiding on your teen's phones. the ghost apps that many kids are using to keep you in the dark. if you run over somebody, it's usually because you were driving too fast or you didn't look before you turned or you didn't stop for someone in the crosswalk. always be alert. pedestrians don't come with airbags. they recently rated their car