'We’re in a generational fight...on a par with the struggle against communism or Nazism'

Nasser Weddady spends his days countering the ideology of what he calls "radical jihadi islamism." He's used to the cycle of terrorist atrocities and post-attack rhetoric. But Paris really got to him. It brought home how complicated it all is, and how frustrated he is that we have learned all kinds of lessons since 9/11 that we fail to apply.