Hours after Louisiana’s Republican governor signed legislation Wednesday requiring the Ten Commandments to be displayed in public schools and universities, civil rights groups, including the ACLU, made preparations to challenge the new law. Gov. Jeff Landry signed House Bill 71 during a news conference, touting it and several other pieces of legislation focused on education as necessary reforms to “bring common sense back to our classrooms.” The law, passed by the GOP-controlled legislature, requires a poster-sized display of the Ten Commandments in a “large, easily readable font.” “If you wan…