U.S. Benghazi panel to hear from Clinton friend in private on June 16

Democratic Presidential candidate Hillary Clinton speaks about voting rights during an appearance at Texas Southern University in Houston, Texas June 4, 2015. REUTERS/Donna Carson

WASHINGTON (Reuters) - A U.S. congressional panel investigating the 2012 attacks in Benghazi, Libya, on Friday said it would meet behind closed doors on June 16 to hear from Sidney Blumenthal, a longtime friend of Hillary Clinton who was an unofficial adviser while she was secretary of state. Congressional investigators had issued a subpoena seeking testimony from Blumenthal, who had sent private intelligence reports to Clinton before and after the deadly attacks. (Reporting by Emily Stephenson; Editing by Sandra Maler)