Meanwhile...

AP:

Thousands of U.S. soldiers searched Sunday for three Americans who were missing after their patrol came under attack in an explosion that killed four of their comrades and an Iraqi army translator. Two bombings -- one in northern Iraq and another at a market in Baghdad -- killed at least 67 Iraqis.

The Islamic State in Iraq, an al-Qaida front group, said it had captured several soldiers in the attack, but offered no proof to back up its claim, posted on an Islamic Web site.

The search for the missing Americans began after insurgents attacked a patrol of seven U.S. soldiers and an Iraqi interpreter before dawn Saturday near Mahmoudiya.