Uday and Qusay are dead:

On Tuesday, July 22, forces associated with the 101st Airborne Division and Special Operations Forces conducted an operation against suspected regime figures at a residence in Mosul, Iraq. The site is currently being exploited. Four Iraqis were killed in the operation. We have confirmed that two of the dead were Saddam's sons Uday and Qusay

(from Headquarters United States Central Command).