DALLAS -- 7-Eleven Inc. will stock its own private-label beer starting this summer, a move that's expected to be closely watched in the $60 billion U.S. beer business. Santiago, which will begin to appear in 7-Eleven cold vaults in June, will be sold for $5.99 a six-pack. The price is lower than many other brands, including Mexican import Corona, with which Santiago is packaged and brewed to compete. "7-Eleven is the 800-pound gorilla in the beer business. It's one of the largest sellers of beer in the country, somewhere in the top five with Wal-Mart and major grocery chains," said...