Gulf squeeze on dissent raises alarm with allies - Article Photos 1/7

A riot policeman fires tear gas in Daih, Bahrain, on Saturday, Nov. 3, 2012, where Bahraini anti-government protesters tried to organize a march despite a ban on protests. A heavy police presence prevented protesters from gathering, and police dispersed and chased small groups through narrow streets as they emerged. (AP Photo/Hasan Jamali)