#Ap | Bahraini anti-government protesters chant slogans and hold a banner that reads, " Martyrs day celebration", during a protest in Manama, Bahrain, on Monday, Dec.17, 2012. Security forces in Bahrain have fired tear gas and stun grenades to break up protest marchers after calls by anti-government groups to snarl the Gulf nation's capital with demonstrators. (AP Photo/Hasan Jamali)