President Barack Obama responds to questions on Russia's intervention in Syria during a news conference in the State Dining Room of the White House, October 2, 2015, in Washington, D.C. Mike Theiler /UPI /Landov hide caption

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Members of the Minneapolis Somali community waited in May to enter the U.S. Courthouse where a federal judge ordered four Minnesota men, accused of trying to travel to Syria to join ISIS, to be held pending trial. Jim Mone/AP hide caption

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Police made one of several arrests at this house in Narre Warren, a suburb of Melbourne, Saturday. Police raided houses in the city's outer eastern suburbs and made several arrests over an alleged attack planned for ANZAC Day. David Crosling/EPA /LANDOV hide caption

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Two teams face off in a debate over the extent of the president's war powers at the latest debate from Intelligence Squared U.S. Samuel LaHoz/Intelligence Squared U.S. hide caption

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Libyan Prime Minister Ali Zeidan speaks to the media during a news conference in Rabat, Morocco, on Tuesday, where he talked about the U.S. action to nab an al-Qaida operative in Tripoli. Abdeljalil Bounhar/AP hide caption

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President Obama and John Brennan, his top counterterrorism adviser, in the Oval Office on Jan. 4, 2010. Brennan is a key voice about who gets put on the "kill list." Pete Souza/White House hide caption

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