I've been saying all along that I thought an attack on Iran so idiotic as to be impossible, even for the current administration. Here are today's links on the various facets of the ratcheting up of tensions.
Study: US preparing 'massive' military attack against Iran
US warns Iran over Iraq, nuclear program
U.S. troops reportedly detain Iranians
Iran says ready to fill vacuum in Iraq left by U.S.
Diplomats criticize Iran's deal with UN atom inspectors
Bush confronts Iran's 'murderous activities'
And, by the way, make sure you read Bernard Kouchner's piece on what France can do in Iraq.