One of the ways the US is trying to weed out militants in the lawless border regions between Afghanistan and Pakistan is by using pilotless planes to bomb targets.
The drone attacks have been credited with killing a number of senior al-Qaeda and Taliban figures, but they're controversial because innocent people are sometimes killed.
Newsbeat's Tulip Mazumdar spoke to 15-year-old Sadaullah who says he lost both legs and an eye in a bombing in North Wazirstan.
He's now suing the CIA over what he claims happened.
So what does the government in Washington DC say about it all? Newsbeat's US reporter Sima Kotecha explains:
"The US government defends drone attacks - saying they're legal and 'an act of self defence'.
It claims when dealing with what it calls 'terrorist organisations' like Al Qaeda and the Taliban - these unmanned strikes are necessary because they eliminate risk. It argues US forces can't be killed if they're not involved in person so it says it's a way of reducing overall US casualties.
The use of drones is reported to have gone up since President Obama came into office but military officials here have called them a vital and effective part of the strategy to defeat, dismantle, and disrupt terrorism in Pakistan."