. >> ask any american at one of the many ex-pat bars in ho chi min city.e-in-a-lifetime adventure overseas. >> every day we're seeing more people come in. i think the more american businesses come over here, the more vietnamese businesses that pop up to support those. >> take the advertising business which really didn't exist ten years ago. now the largest american ad agencies have set up here. >> the demand of vietnamese americans, the demand is so greatly. >> i didn't really tell my mom. i sort of just called her one day and say hey i'm moving to vietnam next week. when i was in the u.s. i worked at a school, santa coffee shop as a barista, and i've been living here for five years, and i've produced many commercials and films, in l.a. there is a lot of rules, union rules that you have to go by. >> people come over here because there are a lot of opportunities, they're not going to get that in the u.s., you know. >> fast forward to even more reason ahead to ho chi min city now southeast asia's largest exporter to the united states. a record 6% growth is e

. >> reporter: in ho chi min city tobi finds her orphanage. >> the toddler room, huh?only a child who never knew her parents or even her homeland, understand how important this moment is. >> hello! i can't put words to it. i can't believe that, you know. >> reporter: this is where you came from? >> my life started here because of people who cared so much, and they had hope for us. >> there's a lot of feelings going on. >> reporter: after years of searching and with help from a vietnamese tv network, stacy was overcome to meet her birth family. but there is sad news. her mother had died of cancer. >> please tell them that i'm sorry that i'm too late to meet her. >> reporter: at journey's end stacy visits her mother's grave and can tell her what that scared orphan girl always uponned to say mom i love you. barry petersen, cbs news, vietnam. >> pelley: and that's the cbs evening news for tonight. for all of us at cbs news, all around the world, good night. >>> george clooney talking all about his wife amal and why she was the one. >> plus adam levine sugar bombed. how the

. >> he was schedule in ho chi min city known as saigon, the fall of saigon was the finish of the vietnam war, and to the u.s. involvement in south-east asia. >> americans took part in a sombre ceremony honouring the last two killed. a group of marines took place in it. 58,000 americans were killed and vietnamese allies. >> the u.s. allocated money to clean up land contaminated by agent orange. millions of gallons of the chemical was dumped during the war. scott heidler takes a look at the enduring legacy of that toxic dump. psh psh >> reporter: tu was not alive during the war that carries his country's name, a war that ended 40 years ago, but the effects robbed the 7-year-old of a normal life. more than that, it will kill him. just like it killed his sister. she was seven when she died from the same blood disease they both suffer from. his father works at the da nang airport, a site where planes were loaded with agent orange during the war. it contains dioxin, causing birth defects, cancer and other diseases, passed on from parents. >> translation: i wish that the u.s. would fully decont

city. it commemorates the official end to the vietnam war and america's decades' long involvement in southeast asia. we spoke to women whose lives were forever changed that day. >> reporter: mina school principal in oakland. she and her family are among the south vietnamese refugees whose lives were forever transformed on april 30th, 1975. >> every day the work that i do is because of the fact that my family sacrificed everything so that we could have access to democracy, access to the best education is supposed to be. >> reporter: her father who opposed the communist government was sent to prison. for three years her family waited for his release. when that day came, they escaped on a boat using chinese passports. >> three nights, three days on the ocean. we basically survived on sugar cane juice and had what we had on our back. >> reporter: the family spent eight months on an island for refugees until they were allowed to come to the u.s. eventually settling in san jose. >> i remember a lot about that day. >> reporter: this woman and her family didn't wait to leave. on april 30th, 1975, they ran towards the beach. >> my mom and five children, we followed her. got onto one o