US says latest bin Laden tape 'authentic'

US intelligence agencies have determined that the latest audio tape of al-Qaeda leader Osama bin Laden is authentic, the White House said on Tuesday.

"Intelligence officials do believe that the tape is authentic and that it is Osama bin Laden," White House spokeswoman Dana Perino said. The recording sounded like al-Qaeda was "trying to recapture some lost ground," She said. In the audio recording aired on Monday, bin Laden urged insurgents in Iraq to unite with his al Qaeda followers. (Reuters)