The CIA wants permission to kill more Arabs 'on suspicion'

"...Securing permission to use these “signature strikes” would allow the agency to hit targets based solely on intelligence indicating patterns of suspicious behavior, such as imagery showing militants gathering at known al-Qaeda compounds or unloading explosives. The practice has been a core element of the CIA’s drone program in Pakistan for several years. CIA Director David H. Petraeus has requested permission to use the tactic against the al-Qaeda affiliate in Yemen, which has emerged as the most pressing terrorism threat to the United States, officials said..."