The American Civil Defense Association (TACDA) has changed to a free membership model. Membership gives access to the archive of the Journal of Civil Defense as well as to e-journal access to new issues of the bi-annual publication. If you wish, you can still pay to receive hard copies of the journal in the mail. The mission of The American Civil Defense Association is to empower and equip individuals, families and communities through educational means, to be prepared for emergencies and disasters. By giving life-time memberships, they believe they are better able to achieve this goal. I have found TACDA to be a good source of information and think it is worth more than the free membership to get access to their journal.