By MIRIAM JORDAN
ADDIS ABABA—The line of Ethiopians extended out the door on a recent afternoon at the normally sleepy Addis Ababa University post office, where the lone clerk wasn’t selling stamps or weighing packages. She was dispensing a coveted lottery ticket—a shot at legal residence in the U.S.
While the U.S. Postal Service strives to develop nonmail ventures to keep it afloat, its Ethiopian counterpart has found a novel side business, mining dreams of America.