In a factory in Opp, Alabama, a team of workers sits at sewing machines, fashioning uniforms for America’s warfighters one stitch at a time. From station to station, the uniform takes shape — a pocket here, a button there — until, at the end, a complete pair of trousers is ready for final inspection. The workers are experts at their individual stations, giving careful attention to detail and taking pride in their work, even as they move at a pac…