Transcript for Chinese fighter flew inverted above US Air Force jet over Yellow Sea

We're just learning of an a tense encounter between an American military plane and two Chinese fighter jets. US military officials say the American plane was flying near Korea when one of the Chinese suggested a barrel rolled right over the US plane. Americans call the move by the Chinese unprofessional. This is a second incident between the US and Chinese aircraft this year. The president is making five stops over nine days in the Middle East and Europe starting in Saudi Arabia he leaves today he's expected to address the fight. Against terrorism. And the Israeli Palestinian peace process he'll also meet the Pope and attend the NATO and G-7 summits. While the president says he is also very close to announcing his new FBI director. And he confirms that former Connecticut senator Joseph Lieberman is the front runner to replace James combing. Lieberman is a former Democrat turned independent. He was Al Gore's running mate in 2000 but he backed John McCain for president in 2008. Some Democrats say the job should not go to a former politician.

This transcript has been automatically generated and may not be 100% accurate.