unmanned spacecraft. they aren't saying much about what the spaceship will be doing on its mission. a bit of education here. you know the signs in restaurants explaining the heimlich maneuver. food thing some people pay attention. take a look at this. this male diner, there he is, he's choking, gets up, and restaurant worker matthew mcconnell comes over and begins the heimlich maneuver. the man he saved calls him a hero. mcconnell doesn't think so. >> hero might be a little bit of exaggeration. anybody would have stepped in and did the same thing. >> he's definitely a hero, and if i wasn't a broke college student, i would have tipped a lot march than i did. >> you want to do it with enough force to lift them off their feet. >> that guy knows what he's doing. and about the tip, mcconnell says it was just fine. much will be heard far and wide today as the famed iditarod