FILE - In this May 4, 1975 file photo, South Vietnamese evacuees fill a landing craft, assisted by U.S. Marines, as they are transferred from the USS Blue Ridge to a merchant vessel in the South China Sea. More than 3 million people fled Communist-controlled Vietnam and neighboring Laos and Cambodia after the Vietnam War ended in 1975. More than 125,000 refugees from Vietnam were resettled in the U.S. between 1975 and 1980, according to the Migration Policy Institute in Washington, D.C. (AP Photo/Neal Ulevich)