As threats to his personal safety have grown increasingly dire, the world's richest man has barricaded himself behind a retinue of bodyguards who operate like a mini-secret service.
His works, widely exhibited in the form of sculptures, performances, films and more, did not represent anything in particular, but rather evoked an experience.
The U.S. military said the group's top commander in Iraq and its top bomb maker were among those killed in a joint attack by U.S. and Iraqi forces last month.
A close contact of a person with bird flu became ill the same day, the CDC said. But the second person was not tested and the cause of the illness is unknown.