https://news.ycombinator.com/item?id=7395233
"If Bush & Cheney administration goes down, so goes Clinton & Gore. (...) The CIA was granted permission to use extraordinary rendition (torture flights) in a presidential directive signed by Bill Clinton in 1995. The practice was started by George H. W. Bush in 1993."
The story starts at least 20 years ago. And as Marcy Wheeler suggests, the directive for drones was probably signed by G. W. Bush and Obama still uses them.