Snapshots: The world in 24 hours March 2

Apple Inc. CEO Steve Jobs introduces the iPad 2 on stage during an Apple event in San Francisco, California Mar 2, 2011. Jobs took the stage to a standing ovation on Wednesday, returning to the spotlight after a brief medical absence to unveil the second version of the iPad. [Photo/Agencies]

Anti-government protesters shout slogans during a protest demanding the ouster of Yemen's President Ali Abdullah Saleh outside Sanaa University Mar 2, 2011. [Photo/Agencies]