Insanity, guns, divisive rhetoric equals terrorism.  Deal with the insanity, take away the guns, stop the divisive rhetoric, or address just one or two of those two things, and this doesn't happen.  Guns should be the first target.  No guns, no shootings.  The fringe (on both poles)  in this country is dangerous to all of us.  Doesn't seem like these nuts ask for political identification cards before they shoot (what party were the two law enforcement officers that were shot?).  Better identifiication and intervention needs to be prioritized.  That means watching  and addressing guys like the one who shote Scalise, and whoever was setting him off, as well as the guy who shot the churchgoers in Charleston, SC, and whoever sets someone like him off.  At the very least, get guns out of their hands.