Are you unsure if depressions are at least partly caused by a self-propagating group fear response? Maybe this piece of spam I just got will help to change your mind:
WACHOVIA CORPORATION NOTICE. Citigroup announced a buyout of Wachovia brokered by the FDIC. All Wachovia bank locations will be in the Citigroup merger to prevent failure of Wachovia. The Citigroup/Wachovia would focus on upgrading banks' security certificates. All Wachovia customers must fill the forms and complete installation of new Citigroup Standard digital signatures during 48 hours. Please follow the installation steps below: Read more>> Sincerely, Cecile Bowling. 2008 Wachovia Corporation. All rights reserved.