Iraqi riot police officers prevent anti-government protesters from entering the Basra provincial headquarters during a demonstration in Basra, Iraq's second-largest city, 340 miles southeast of Baghdad, Iraq, Thursday, Feb. 17, 2011. Hundreds of Iraqi demonstrators massed in the southern city of Basra to demand the ousting of the local governor, a day after a similar anti-government protest sparked violence that killed a few people. (AP Photo/Nabil al-Jurani)