GREENSBORO, N.C., Feb. 28 -- The city of Greensboro issued the following news release:

Senior Transportation Planner Tram Truong grew up in Ho Chi Minh City, Vietnam, more than 9,000 miles and a day-long flight from Greensboro. But today, thanks in part to the City of Greensboro, she is an American citizen who calls the Gate City her home.

Truong's hire in 2013 marked the first time the City sponsored an H-1B working visa, which lets US employers hire foreign workers in specialty occupations for up to six years with options for renewal. It opened the door for others to join the City's workforce with an H-1B visa, and today Truong enjoys working in one of the City's more diverse departments.

Truong came to the US in 2006 with her husband,...