Cheney: Future Attacks Are 'Almost Certain' (washingtonpost.com)

Of course, the real question is if we're talking shoe-bomber level attacks, or something real. Al-Qaeda has tried to attack more than once since 9-11, and they haven't been able to do anything.

What I'm also worried about is Boy-Who-Cried-Wolf syndrome. If the government keeps saying "There's going to be an attack," and it never happens, sooner or later people will stop paying attention. And that's when the attack will occur.