"The comments you get most frequently are people saying, 'wow if this guy can do it with one leg, if he can get in that good a shape then I have no excuses with two legs, " says Sundquist.

BBC: Five photos that sparked body image debates

"Pete was as good a guy as you can imagine and one of the best pilots I've ever had the pleasure of flying with, " he said.

BBC: Capt Pete Barnes

Mr. SCHACTMAN: As one guy I really respect who's a lieutenant colonel pointed out, it's like you can't predict who's going to win the Iowa caucuses, and now, you're going to replicate freewill.

NPR: U.S. Troops Training on Video Games