Obama confirms drone strikes on Pakistan militants
US President Barack Obama has confirmed that unmanned drones regularly strike suspected militants in Pakistan's tribal areas.
Mr Obama called the strikes a "targeted focussed effort at people who are on a list of active terrorists".
The US does not routinely speak publicly about drone operations.
Mr Obama made his comments during an hour-long video "hangout" on Google's social network, Google+, which was also streamed live on YouTube.