Fears are growing of an outbreak of violence in the Pakistani city of Karachi following the slaying of an exiled political leader in London. Imran Farooq of the MQM was found dead on Thursday with multiple stab wounds. Farooq had been inactive in politics for two years after taking refuge in Britain in 1999. The Pakistani government has blamed the Taliban for the slaying and has warned of possible reprisals in Karachi.