![President Barack Obama speaks about the release of …](http://l3.yimg.com/bt/api/res/1.2/Y8GuXB3i0XMdaDYcDbDSng--/YXBwaWQ9eW5ld3NfbGVnbztmaT1maWxsO2g9MjAwO3E9NzU7dz0zMDA-/http://media.zenfs.com/en_us/News/ap_webfeeds/91d019691778d0038d0f6a706700378b.jpg)
President Barack Obama on Sunday heralded the release of Americans held prisoner in Iran and the full implementation of a historic nuclear accord with the Islamic Republic, holding both up as a victory for "smart" diplomacy and fulfillment of his pledge to deal directly with enemies of the United States.