This week on the show: The FBI rules out terrorism in the awful train crash in Pennsylvania. But why are we so quick these days to ask whether every accident was caused by terrorists? Congress is poised to pass new legislation on surveillance. And what does a new report on Iranian hackers tell us about the standards of intelligence in the age of cyber war? Plus in our object lesson, we go to the movies with an Ethan Hawke film on drones, and in North Korea, death by very, very big firing squad.