Discrimination against Atheists in the US is more widespread than against any other religious group, including Islam.
http://atheismawareness.home.att.net/blair/200009.htm
http://www.geocities.com/Athens/Agora/7884/
http://www.geocities.com/Athens/Forum/2093/star4.html
http://secularsouth.org/archive.php?column=bible_belt
http://www.objectivethought.com/articles/Rites.html
etc.
http://atheismawareness.home.att.net/blair/200009.htm
http://www.geocities.com/Athens/Agora/7884/
http://www.geocities.com/Athens/Forum/2093/star4.html
http://secularsouth.org/archive.php?column=bible_belt
http://www.objectivethought.com/articles/Rites.html
etc.