There are no eye sockets big enough for the eye-rolling I want to do when I hear American politicians express shock at political violence like last week's domestic terror trifecta: a racist white man murdered two blacks at a Kentucky grocery store, a white right-winger stands accused of mailing more than a dozen pipe bombs to Democratic politicians and celebrities, and a white anti-Semite allegedly gunned down 11 people at a Pittsburgh synagogue.
There's plenty of blame to go around.
The assault weapons ban expired in 2004 and Congress failed to renew it; 8 million AR-15 semiautomatic rifles and related models are now in American homes. Mass shootings aren't occurring more frequently but when they do, body counts are higher.