UNDERSTANDING THE MENTALITYThe dog ate my emailhttp://www.washingtonpost.com/wp-dyn/content/blog/2008/02/27/BL2008022702079.html[Dan Froomkin] The Bush White House has made a mockery of the Presidential Records Act and its requirement that official White House records -- including e-mails -- be preserved for posterity.At a congressional hearing yesterday, it became clear for the first time that