Tear gas lands on a house where riot police dispersed Bahraini anti-government protesters gathering for a march calling for the release of political prisoners in Bilad al-Qadeem, Bahrain, on Tuesday, Sept. 25, 2012. Police chased protesters with tear gas and stun grenades as they arrived for the march, preventing it from starting. Writing on the wall reads: "Down Hamad," referring to Bahrain's king. (AP Photo/Hasan Jamali)
