U.S. President Barack Obama addresses the Iranian people, in this frame grab of videotaped speech released by the White House just after midnight, early March 20, 2009. Obama issued an unprecedented videotaped appeal to Iran on Friday offering a ?new beginning? of diplomatic engagement to turn the page on decades of U.S. policy toward America's longtime foe. REUTERS/The White House/Handout (UNITED STATES POLITICS) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS