[annalex]

That is an uncoherent argument, because the question immediately arises, what if Iraq, Syria or Iran harbor Osama bin Laden terrorists, or Hezbollah merges with them.

Buchanan could have made this argument: that unless Osama terrorists move to a particualr country, or receives a substantial suport from a particular country, we shouldn't attack that country in the context of this war. That would have been a valid comment, and I would agree with it.

[madrussian]

That is an uncoherent argument, because the question immediately arises, what if Iraq, Syria or Iran harbor Osama bin Laden terrorists, or Hezbollah merges with them.

He was talking about the current situation. What do unlikely "what-if" scenarios have to do with anything?