http://abcnews.go.com/International/us-military-team-lands-mt-sinjar-iraq-assess/story?id=24968686 United States Marines, special forces and the USAID disaster assistance relief team briefly landed today on Mt. Sinjar in Iraq, a U.S. official told ABC News. It was the first time ABC News has learned of any Americans landing on the mountain, where thousands of Yazidis are trapped and facing a humanitarian crisis. “Today a team of fewer than twenty personnel conducted an assessment of the situation on Mt. Sinjar," a defense official told ABC News. "All personnel have returned safely to Erbil by military air.” Defense Secretary Chuck Hagel announced on Tuesday that the United States has sent a 130 member military assessment team to Erbil in the autonomous Iraqi province of Kurdistan to determine what further assistance the U.S. can provide to the Yazidis…..