PakistanImran warns of sit-in in Karachi against drone attacksAli HussainMay 1, 2011May 2, 2011 by Ali HussainMay 1, 2011May 2, 2011 Karachi: Chairman, Pakistan Tehrik-e-Insaf (PTI), Imran Khan, on Sunday warned that if the CIA-operated drone attacks inside Pakistan were not stopped, PTI will stage a...