tracks. this happened in one of the busiest stations. i know this station well. this man just inches from the electrified third rail and the train likely to arrive in moments and an army specialist jumps to help him out. check it out. >> i just jumped down there and started helping him out and started pulling, trying to pick him up and i realize he is seat belt strapped to the wheelchair and every second felt like 30 seconds. >> two others ran in to help as well lifting the wheelchair out. you see the man is recovering, the soldier says he is not a hero, he just did the right thing. congratulations to him. >> and code for america, it is kind of like think of peace corps for geeks, the next thing coming on the next list and dr. sanjay gupta explains what it is. i am dr. sanjay gupta. meet jennifer, code for america, a peace corps for geeks >> most people have seen that geeks have changed the world so