Activists from Pakistan's Muttahida Quami Movement, a political party, hold placards during a protest rally in Karachi January 15, 2006. Thousands of people rallied across Pakistan on Sunday to protest against a U.S. Airstrike in a tribal region that killed at least 18 people but missed its apparent target, al Qaeda's number two, Ayman al Zawahri. REUTERS/Zahid Hussein