WASHINGTON — In a symbolic gesture, the Palestinians on Tuesday raised their flag for the first time over the PLO diplomatic mission in Washington, as they continue a push for international recognition that is complicating the Obama administration's efforts to restart stalled Middle East peace talks.At a brief ceremony, the Palestinian's chief envoy to the United States, Maen Areikat, hoisted the red, green, white and black banner outside the PLO General Delegation office. He expressed hope it would help in the Palestinian quest to win support for independence with or without a peace deal with Israel."We are proud to see the flag," Areikat said. "It's about time that this flag that symbolizes the struggle of the Palestinian people for self-determination and statehood is raised in the United States. We hope that this will help in the international efforts to provide recognition for the Palestinian state."