Samantha Power, Permanent Representative to the United Nations (designate)

A recent National Interest magazine cover labeled Power an "Interventionista" because of her background as a Pulitzer Prize-winning journalist who dedicated her career to reporting on the atrocities of genocide in Bosnia, Rwanda, Darfur, and other places. In her 2002 book, "A Problem From Hell": America and the Age of Genocide, she wrote: "No U.S. president has ever made genocide prevention a priority, and no U.S. president has ever suffered politically for his indifference to its occurrence." She added, "It is thus no coincidence that genocide rages on." Power, 42, was born in Ireland and came to the U.S. when she was 9. After graduating from Yale, she soon went to work covering the wars in Yugoslavia for several magazines and newspapers, including The Boston Globe. Power went on to Harvard Law School, wrote numerous books on genocide, and taught at Harvard. When Obama was elected to the Senate, she worked for him as a foreign policy adviser and later joined his 2008 presidential campaign. But after Power called Obama's then-Democratic rival Hillary Rodham Clinton a "monster," she left the campaign. Power returned to work for Obama after he was elected, serving on the transition team at the State Department and then on the National Security Council staff. With Power's nomination to the U.N. post, the president is following one fiery U.N. ambassador — Susan Rice — with another. The confirmation hearing will no doubt explore some of Power's controversial statements. Her comment that Israel has committed  human-rights abuses, for example, has provided fodder for critics who call her anti-Israel.