Rusty, Chad and Preston have this story well covered. Including some comments on there being possible Zarqawi ties and the Saudi reaction.

There is further information though on the attackers actively seeking out Americans.

Billings Gazette

The militants stormed into the compound's inner courtyard, firing their guns from behind trees, bursting into offices and shouting: "Where are the Americans? Where are the Americans?"

Lying in hospital beds, wounded U.S. consulate workers provided new details Tuesday about an attack that killed nine, injured at least 10 and showed America's continued vulnerability to terrorist groups capable of conducting sophisticated surveillance on even the most heavily guarded sites.

The militants "clearly understood how cars entered the compound, and they were conducting surveillance," U.S. Ambassador James C. Oberwetter said Tuesday.