It's code. If you value your life, your money, and your freedom, head to Canada! They will take care of you there.
"This is your attack profile: to insure that the enemy cannot monitor voice transmission or plant false transmission, the CRM114 is to be switched into all the receiver circuits. Emergency phase code prefix is to be set on the dials of the CRM. This'll block any transmission other than those preceded by code prefix. Stand by to set code prefix."