This is Thomas Sowell, not a pasty faced white guy:
who DeLong has compared to one of America's foremost segregationists (whose name he cannot even spell right; it is Orval, not Orville). DeLong is entitled to criticize Sowell, even describe his arguments as offensive, but he has now stepped over the line into racism.
DeLong has hit rock bottom. DeLong does not owe Sowell an apology. He owes him an apology, delivered in person, on his hands and knees. Hoover isn't that far from Berkeley, Brad. Get moving.