Being a Canadian I have little exposure to things such as this, but I can tell you I find it quite amusing when Christians are so quick to claim that "the US was founded on Christian values/morals/etc" and that "US law was founded around the Ten Commandments".

This is a very good read for anyone really interested in this particular topic:
"Man can focus his mind to a full, active, purposefully directed awareness of reality - or he can unfocus it and let himself drift in a semiconscious daze..." ~ Ayn Rand