Weren't the launch codes set to 0000000 or something because for convenience for decades? So no need to upgrade to larger storage for this.
edit: found it http://gizmodo.com/for-20-years-the-nuclear-launch-code-at-u...
edit: found it http://gizmodo.com/for-20-years-the-nuclear-launch-code-at-u...
Understand this was allowed initially in case POTUS was incapacitated or cut off from communication but still...