some of their bluntist language said the window of opportunity to slow down iran's nuclear program is narrowing. in other words, getting short. what would a strike on iran mean for the u.s.? richard angle is the chief corresponde correspondent. he has a new fascinating book called "strategic vision" about the united states role inhether influences on the decline or not, we'll talk to him about that. let's start with the situation out there. what's new, richard, about the prospects for an attack by israel on the iranian nuclear facilities? >> what's new is that the israelis do feel their window to operate is shrinking. that the iranians are working on their program, making progress every month, and they could