U.S. first lady Michelle Obama, center, hugs students at a local high school that she visited with Bun Rany, the first lady of Cambodia, second right, Saturday, March 21, 2015, on the outskirts of Siem Reap, Cambodia. Mrs. Obama is in Cambodia to promote the education initiative “Let Girls Learn,” which was launched to lift barriers that block more than 62 million girls around the world from attending school. (AP Photo/Wong Maye-E)