[about the ending of the Space Shuttle program] I am proud of what the shuttle has accomplished. We did have two horrible accidents, but flying in space is never going to be risk free. Both times, NASA picked itself up, put the program back together and got it flying in a safer manner. Looking back, it's been a great program for 30 years. To not be able to do some of those kinds of things for five, 10, maybe 20 years is sad for me personally and sad for the country. Show less «