The sentencing of Pakistani scientist Dr Aafia Siddiqui by a New York court on Thursday prompted demonstrations in at least four cities on Friday. Much of the anger was directed at the Pakistani government for failing to somehow intervene in her case. In Karachi, where Siddiqui's family lives, police fired tear gas to disperse about 100 people who began hurling stones at officers, said police Chief Javed Akbar. In Islamabad, protesters from a political party attempting to reach the US Embassy scuffled with police near a five-star hotel, witnesses said.