It’s constitutional to put the Ten Commandments in a park, but unconstitutional to put the Ten Commandments in a courthouse. Makes sense? Only to Justice Breyer (who went one way in the first case and the other way in the second case).
But instead of examining the minutiae of the decisions, lets step back and get a holistic view of the issues. A lot of politicians and other people running our governments really really really want to show how the government endorses Christianity. The voters seem to like it when politicians do this. Since everyone “knows” that God gave us the Ten Commandments, isn’t it only proper that the Government remind us of it?
Don’t politicians have anything more important to do? Well, besides spending hundreds of millions of dollars to erect new sports stadiums, no they don’t seem to have anything more important to do. What’s more important than saving people’s souls? (If people don’t believe in Jesus, their souls will go to Hell).
Superstitious nonsense? Only to 5% of the population.
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In this post, Eugene Volokh explains how the Ten Commandments have nothing to do with American law. Duh! Of course they don't. That was just a made up so the Ten Commandments could hang on the wall and save people’s souls.