This is AP News Minute.President Barack Obama is naming Denis McDonough to lead the White House staff.McDonough has advised Obama on foreign policy for nearly a decade and most recently served as the president's deputy national security adviser.Thousands of anti-abortion demonstrators are marching through Washington.They're going to the U.S. Supreme Court to protest the landmark decision that legalized abortion.A U.S. research institute says recent satellite photos show North Korea could almost be ready to carry out a nuclear test.The images reveal that possible steps have been taken to seal a tunnel into a mountainside where a nuclear device could be detonated.Talk about a tense situation.Floods in South Africa have overwhelmed a crocodile farm there, freeing thousands of them into the surrounding area where crews are trying to wrangle them up.Lee Powell, the Associated Press with AP News Minute.