A Bahrain armored vehicle is hit with petrol bombs thrown by anti-government protesters Friday, March 30, 2012, in Sitra, Bahrain, where widespread demonstrations remembering those who've died in the past year's unrest were broken up by police firing tear gas and clashes erupted. Amnesty International on Friday urged Bahrain to free a leading human rights activist who is on a hunger strike and reminded the Gulf kingdom's rulers to fulfill promises to release all those jailed for speaking out during the country's uprising. (AP Photo/Hasan Jamali)