WASHINGTON — The U.S. Army has developed a “church in a box” to help meet the spiritual needs of front-line troops. The 8-by-20-foot container weighs eight tons and contains everything an Army chaplain needs, including a tent with lights and air conditioning, 100 folding chairs for pews, and Bibles. The $125,000 “containerized chapels” were developed by the army’s Soldier Systems…