Like a sculptor’s medium is clay, Twitter’s medium is nastiness. Tweets about the departed Supreme Court Justice undeniably fit that category. One liberal said, “Now Scalia will know what it’s like to have the government own his body.” Another sadistic lefty chortled: “Funny. I actually support Scalia on this one.” But possibly the worst: “I, for one, will not dance on Scalia’s grave. My mother taught me not to waste that much money on airfare.”