program. you can t justify to keep the work force at the size that we had when we were flying three vehicles. so that s very hard to deal with. i ve never been in that situation before where i had to worry whether my coworkers will be here in a couple of months or not. reporter: 39 times in space. 140 million plus miles flown for discovery. coming home in a short time now. more than likely, anyway. this is going to be it will be quite a moment here, kate. not a bad way to go out, john. not a bad career. thanks so much and check back in with you. join us. we will have live coverage of discovery s final homecoming first touchdown is set for just before noon eastern time. it has a second availability for landing window and that is just after 1:30 eastern. in just about 24 hours, congress looks into radical islam in america. in a few minutes, we re going to look at the new york republican