The Interstate 69 corridor, a Mexico-to-Canada concept discussed since 1991, has received government recognition as a "corridor of the future," a designation that immediately means $800,000 in federal money for studies. Local officials say it could mean more trade in South Texas. The corridor -- a 2,680-mile international trade route from Mexico to Canada also known as the Trans-Texas Corridor-69 -- was one of two designated Tuesday as corridors of the future. Interstate 10 from California to Florida also received recognition. Hailed as a route that would facilitate trade resulting from the North American Free Trade Agreement, I-69's Texas portion...