Some more trivia on this subject, courtesy of WikiPedia..
$this->bbcode_second_pass_quote('', 'T')he Football dates back to Dwight D. Eisenhower, but its current usage came about in the aftermath of the Cuban missile crisis, when John F. Kennedy worried about the commander-in-chief's ability to authorize a nuclear attack.
First, he was worried that a nuclear attack order would be given without his permission. Second, in an era without cellular telephones, Kennedy felt that he would be unable to make and communicate a nuclear attack decision unless he was at a location hardwired to the Pentagon.
It has been suggested that the nickname Football was derived from an attack plan codenamed "Drop-Kick."
During their presidencies, Jimmy Carter always carried the launch codes in his jacket, while Ronald Reagan preferred to keep the launch codes in his wallet.
Jimmy Carter once left nuclear launch codes in his suit when it was sent in for dry cleaning.
http://en.wikipedia.org/wiki/Nuclear_football