"It's Saudi Arabia and its network of charities and the like. The argument I make is that there is an undercurrent of terror and fanaticism that go hand in hand in the Afghanistan-Pakistan arc, and extend all the way to Uzbekistan. And you can see reflections of it in Bosnia, in Kosovo, in Indonesia, in the Philippines. For instance, in one madrassa in Pakistan, I interviewed 70 Malaysian and Thai students who are being educated side by side with students who went on to the Afghan war and the like. These people return to their countries, and then we see the results in a short while. ... At best, they become hot-headed preachers in mosques that encourage fighting Christians in Nigeria or in Indonesia. And in a worst case, they actually recruit or participate in terror acts."