The coded card (sometimes called "nuclear biscuit") was separated from Ronald Reagan immediately after the 1981 assassination attempt against him, when his clothing was cut off by the emergency department trauma team. It was later discovered lying unsecured in one of his shoes on the emergency department floor. This led to an urban legend that Reagan carried the code in his sock. Reagan was separated from the rest of the football as well, because the officer who carried it was left behind as the motorcade sped away with the wounded president.