Shhhh!
Borzou Daragahi of the AP reports Now You See Them, Now You Don't: Americans Are an Open Secret in Northern Iraq:

CHWAR GURNA, Iraq (AP) - The helicopter pad at this military base is one stop for the American forces said to visit northern Iraq's Kurdish zone as they quietly prepare for war to oust Saddam Hussein.

"The Americans were here just a few days ago," said Adnan Arazi, a Kurdish translator working at a guardhouse outside the base.

Just as he puffed out his chest and held his arms in a machine gun-toting pose mimicking U.S. special operations personnel, two plainclothes security officials approached.

"There are no Americans here," one told The Associated Press. "You are free to leave now."

Nothing to see here, just move along.