The latest story about an NFL player and a flag began Tuesday morning just after 11, in the great hall of the U.S. Department of Labor’s Frances Perkins building. All 45 candidates for naturalization held miniature American flags as they sat in plastic chairs and listened to government officials deliver paeans to the power of immigration. Those included the first two candidates in the front row, perhaps the smallest and the biggest of the 45. There was tiny Dahlia Lyons, a native of the Philippines and the only military spouse in the ceremony. And next to her was the 6-foot-5...