Commentary The long July Fourth weekend in Chicago, a city that boasts some of the strictest gun control laws in the country, saw 100 people shot, 18 fatally. Among those injured or killed were two police officers and five children 13-years-old or younger. It is almost certain that overworked and underappreciated Chicago homicide detectives will not close all or even most of these cases. But the priorities of President Biden’s nominee to lead the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) seem not to be aimed at the target of the spiraling murder spree let loose by nationwide riots attacking law enforcement, either in Chicago or 50 other major U.S. cities. Indeed, Biden’s pick of David Chipman, a senior policy advisor of the gun control group known as Giffords, to lead the ATF suggests that gun control—not crime fighting—will be the agency’s top priority. In particular, Chipman’s appears to …