U.S. Labor Secretary Thomas E. Perez and U.S. Sen. Tom Harkin visited Raygun T-shirt shop in Des Moines' East Village on April 5 because of owner Mike Draper's advocacy for raising the federal minimum wage to $10.10 an hour. Draper says he pays his workers $13.50 an hour and his business is profitable and growing. You can see a slideshow of the visit on the department's website.