As part of a J-1 summer work travel program with a student work visa from the U.S. State Department, Rios said he was not paid overtime and had to be on call at all times of the day as an employee at a McDonald's near Harrisburg, Pa.He and about 17 other foreign students say they paid around $3,000 to $4,000 for visa costs, plane tickets and other expenses.We have been exploited by McDonald's bec