See more photos of political unrest in Yemen here.
Muhammed Muheisen / AP
An anti-government protestor, left, sprays foam to cool off other demonstrators shouting slogans during a demonstration demanding the resignation of Yemeni President Ali Abdullah Saleh, in Sanaa, Yemen on March 2. Yemen's embattled president on Tuesday accused the U.S., his closest ally, of instigating the mounting protests against him, but the gambit failed to slow the momentum for his ouster. Banner on right reads in Arabic, "I would rather die but my people live".