The choice to treat the El Paso, Texas, shooting as domestic terrorism opens up law enforcement's ability to investigate 8chan and the sites where extremism finds a home.
President Donald Trump's use of the the word "infest" in tweets to an African-American congressman to describe a majority-black city is part of a larger pattern.
The left-right divide—a healthy feature of a pluralist political system—is so toxic now that divergence of opinion has surpassed the realm of policymaking.