A year ago, U.S. president Obama signed a secret order authorizing U.S. support for Syrian terrorists seeking to depose Syrian President Bashar al-Assad and his government. Obama’s order, known as an intelligence “finding,” broadly permits the CIA and other U.S. agencies to provide support that could help the terrorists oust Assad. C.I.A. officers are operating secretly in southern Turkey. Weapons, including automatic rifles, rocket-propelled grenades, ammunition and some antitank weapons, are being funneled mostly across the Turkish border by way of a shadowy network of intermediaries including Syria’s Muslim Brotherhood and paid for by Turkey, Saudi Arabia and Qatar.