Sandia is a company that has gotten almost all their business from the Federal Government for doing research and development of nuclear weapons. Based on this view and others the AEC and the military not only developed small atomic bombs with short range rockets that could be transported in jeeps, but actually developed a 51 lb. atomic bomb that a soldier carried on his back. The idea was for these solders to parachute behind enemy lines, place the bomb near an important enemy facility and escape the critical zone on foot before the bomb exploded. It was never used in combat and receded in interest except for the fact that it proved it was possible for a terrorist suicide bomber on foot to place and explode a nuclear weapon.