i think that the program has to go on no matter what, things like what happened are so sad and horrible but that has to make us want to keep at and do it safer and better. there are so many things left to learn that are so important for us, we can't give up. think of all the things we would of never known about if the generations before us gave up exploring and learning... just my 2 cents but my heart and prayers go out to the families and nasa. R.I.P. they were all heros