Susan Rice Named To Top Security Post

President Barack Obama's top national security adviser Tom Donilon is resigning and will be replaced by Susan Rice, the U.S. ambassador to the U.N. who has been a lightning rod for Republican criticism over faulty explanations for the attack that killed four Americans in Benghazi.

Susan Rice, United States ambassador to the United Nations, will replace Tom Donilon as President Barack Obama's national security adviser.