It has often been asserted--and sometimes in this forum--that the U.S. Supreme Court building is adorned with one or more copies of the Ten Commandments. That is simply not true. The following link explains the nature of displays in that building and addresses a number of other misconceptions within the larger realm of church and state:
http://www.snopes.com/politics/religion/capital.asp
Other errors and some deceptions are discussed in the link below, which examines the work of the shifty phony historian, David Barton: