Dr. Fauzia Siddiqui, the sister of Pakistani scientist Aafia Siddiqui, who is in prison in the U.S., shouts at police officers who stopped her from moving towards the U.S. consulate during a rally demanding the release of her sister, Friday, Feb. 10, 2012 in Karachi, Pakistan. Activists of Pakistani social party Pasban took part in rally demanded to release of Siddiqui, who was convicted in Sept. 2010 of trying to kill U.S. agents and military officers in Afghanistan.