POCATELLO, Idaho (KIFI) – The campers in Pocatello at Constitution Camp have been learning about U.S. history all week, participating in hands-on activities like pulling wagons across the "Oregon Trail" and building states on the country map. They've also been learning patriotic songs to perform at their "Light of Liberty" musical on the last day of camp. Hundreds flocked to the Calvary Chapel for the performance on Friday evening. The kids sang…