Yeah, though many of the Ten Commandments are good general rules to live by, but the first commandment is, "Thou shalt have no other gods before me." Than, plus the idols stuff, plus keeping holy the Sabbath makes it a bit complicated to be manditorily posting anywhere.

I'm not in favor of forcing existing public institutions who put them up a long time ago to tear them down. But I'm certainly not in favor of forcing anyone to post them.