I think this is a good idea too. We already have increased patrols in areas with high crime, drug traffic, prostitution, etc. Why not increase our patrols for jihadism? Where I think Cruz went wrong was using the term "Muslim Neighborhoods." We really don't have Muslim neighborhoods in most of America. If anything, most Muslims live right alongside Christians, blacks, whites, and latinos. I would have used a term like "at-risk neighborhoods."
how PC.
Our countries reaction will probably be "Oh there was another attack in Belguim by a group of young Arab looking guys...better step up the screening of old white guys in wheelchairs and little kids so it doesn't happen here!"