Transcript for President Obama Promises More Oversight on Drone Strikes
This afternoon President Obama defended the most controversial aspect of America's national security strategy. Unmanned drone attacks he said they were legal expected and necessary to dismantle networks of extremists and hard to reach places across the globe. Conventional air power -- missiles are far less precise than drops. And are likely to cause more civilian casualties and more local outrage. The press also discussed week he called hard questions concerns about accountability. And morality every. During his hour long speech at National Defense University. Mr. Obama addressed those concerns by signing new presidential policy guidelines which provide more transparency. About authorized drone attack. In -- significant -- the policy now has the military taking the lead over the CIA in conducting drone strikes outside of war zones. This move comes one day after the administration acknowledged that or American citizens had been killed in secret drone strikes overseas. Citizenship should know more serve as a shield than a sniper shooting down on an innocent crowd should be protected from a swat team. Mr. Obama also renewed his promise to close the detainee prison at Guantanamo Bay Cuba there is no justification beyond politics. For congress to prevent us from closing a facility. -- should should have never been opened the line also drew repeated boisterous. Interruptions and from a heckler. Reaction from Capitol Hill swift. Senators John McCain and Lindsey Graham both said that until the administration comes up with a better plan about what to do with detainees at Guantanamo Bay. The prison will likely stay open. Susan -- ABC news Washington.
This transcript has been automatically generated and may not be 100% accurate.