Gross overstates the (gun control) case. (Among his tipping-point evidence: supportive tweets from Kim Kardashian.) But there is some truth to what he says. From the legislative debacle following Sandy Hook, the gun-control movement has retreated to a limited but pragmatic approach. Gone is the notion of “gun control,” replaced by “reducing gun deaths” or “gun violence prevention.” Gone, for now, are efforts to restrict any type of gun or ammunition. Instead, the movement has found a laser focus on background checks.