Toward the end of the Vietnam war, thousands of orphans were flown out of the country to be adopted by families in the United States and other Western countries. Decades later, many of those now-adult children began searching for their birth families. Tuy Gentry Buckner was among them. Raised in the US by an American family alongside adopted siblings, Tuy always wondered where he came from, who his birth family was, and why they gave him up. He returned to Vietnam 20 years after his adoption to…