Journalist Tareq Haddad said on Saturday that he had resigned from his position at Newsweek because the outlet "suppressed" details -- potentially "inconvenient" to the U.S. government -- surrounding a chemical weapons watchdog's report on the 2018 attack in Syria. "Yesterday I resigned from Newsweek after my attempts to publish newsworthy revelations about the leaked OPCW letter were refused for no valid reason," Haddad tweeted, referring to the Organization for the Prohibition of Chemical Weapons (OPCW). Haddad's tweet came as the OPCW defended itself amid concerns about its reporting on the April 7, 2018, chemical weapons attack in Syria --...