I support the "open letters" blogburst, but my own contribution is likely to be delayed a day or two, to respond directly to whatever points Bush makes in his speech tonight. To see what others have written already, look there.

In the meantime, though, a few pointers to past writing of mine on the subject. Even if you think in "clash of civilization" terms, it doesn't follow that military responses are necessarily the only ones, or the best (nor Iraq necessarily the best target). And even if you take the Bush preemptive-war doctrine on its own terms, there are targets that fit the criteria better than Iraq, including one of our allies.