Obama becomes first sitting US president to visit Laos

Barack Obama became the first US president to visit Laos in office, touching down in Vientiane Monday for a summit of East and South East Asian leaders. Obama arrived in the capital, where the tropical rain did not prevent a large number of airport workers coming out to greet him and cheering -- before being hushed by an official. The outgoing president's visit comes decades after the United States launched a massive and secret bombing campaign in the country that lasted from 1964 to 1973.