Tomorrow the Fifth Circuit Court of Appeals in New Orleans will hear a major case concerning the clash between religious liberty and federal security policies. The case concerns Kawaljeet Tagore, an IRS accountant who was fired because she wore a kirpan to work after she underwent Sikh baptism. The kirpan is a Sikh article of faith similar to a short knife that baptized Sikhs must wear at all times; Ms. Tagore’s kirpan was similar to a small butter knife both in size and sharpness. An arm of the Department of Homeland Security, the Federal Protective Service (FPS) said Ms. Tagore could not enter the federal building in downtown Houston because she was wearing the kirpan. She refused to take it off in accordance...