Could the next chapter of our national nightmare be a nuclear one? How hard would it be for operatives of Osama bin Laden to deliver a "suitcase nuke" to our doorstep?
The technical answer is that the threat is still considered to be remote; there is no hard evidence that any terrorist group, including bin Laden's, has a finished nuclear weapon in its arsenal. But not long ago, anthrax seemed a distant threat. And it is possible for the bad guys to assemble an atom bomb with contraband uranium and off-the-shelf parts. "It's not particularly probable, but it's possible,'" says Anthony...