Reports from Houston about signs in front of a parking lot have some people upset.

The Westview Shopping Center is across the street from the El Farouq Mosque in a Houston neighborhood. Some worshippers have been known to park in the shopping center's lot while attending services at the mosque, but it seems like the shopping center could've handled the situation a little more delicately. Several "No Muslim Parking" signs were posted on Westview's property, leaving worshippers feeling unnerved and upset.

I have heard about similar signs before in the '70s in New York and other big cities against Jews and Greek Orthodox. Are signs that say "NO [Insert Religious Group]" a legal public display?

Is such religious discrimination legal in the United States today?