Midday Roundup: Obama to visit Hiroshima but make no apologies

Paying respects. President Barack Obama plans to visit the site of the World War II atom bomb explosion in Hiroshima, Japan, later this month. He will be the first sitting U.S. president to travel to Hiroshima, the first of two cities on which the United States dropped an atomic bomb at the end of the war. Obama plans to give remarks on nuclear non-proliferation, but he will not apologize for or second-guess President Harry S. Truman’s decision to use the destructive weapons.

Into thin air. The U.S. State Department claims it cannot find any emails to or from one of Hillary Clinton’s IT specialists during the time he worked for the agency between 2009 and 2013. The Republican National Committee filed an open records request for the emails and sued the State Department when it didn’t provide the records. The agency says it cannot find a file that might have contained the emails, but the aide, Brian Pagliano, might also have used a personal email address. He helped Clinton set up the controversial home email server that she used as secretary of state. The RNC wants to see whether the emails contain proof Clinton mishandled classified information.

GOP frenemies. House Speaker Paul Ryan, R-Wis., said Monday he would step down as chairman of this summer’s Republican National Convention if Donald Trump asked him to. Ryan has refused to endorse Trump for president and continues to distance himself from the presumptive Republican nominee. Ryan faces a political challenge in his home state of Wisconsin, where businessman Paul Nehlen is attempting to unseat him in the Republican congressional primary. Former Alaska Gov. Sarah Palin recently jumped into the fray, endorsing Nehlen and bashing Ryan for not giving his full support to Trump.

Unstable attacker. German officials are investigating a knife attack that killed a man aboard a Munich commuter train this morning. Witnesses said the attacker said “Allahu Akbar” and “infidel, you must die” as he struck, but police said the man has no apparent link to any Islamic terror networks. Rather, he shows signs of psychosis and the effects of drug use. The suspect had taken off his shoes prior to the attack because he thought bugs were crawling all over his feet, a police official said.

Rushing winds. A tornado outbreak in Oklahoma on Monday night killed at least two people. As many as 20 tornadoes might have formed in the large storm, part of a system that stretched from Texas to Nebraska, weather officials said. The storm moves into the Mississippi Valley today and could produce more severe weather.

The Associated Press contributed to this report.