"They'd never imagine they would let an American aid worker die, or let a woman be raped and not only that, they actually justify it afterward," Mr. Olson said.
"When you're learning to walk, you fall a lot. Failures are so painful and costly, we shy away from discussing them and don't find out where our weaknesses are," Mr. Olson said. "You learn a ton from failure. You don't learn a lot from success."