Because laughter is now almost the only rational response aside from despair.
In trying to use up 300 characters I am resorting to this kind of pointless space filler.
I first offer, from an Indian site called badmash.com
http://www.badmash.org/videos/videos_flv.php?v=george_bush_512K_Stream.flv&t=Harlan%20Mcraney,%2
0Presidential%20Speechalist%205000
See if you can avoid repeating yourself.