Supreme Court Justice Antonin Scalia, in a scathing letter to the editor of the Boston Herald, accused the newspaper’s staff of watching “too many episodes of the Sopranos” for interpreting a hand gesture he made at a cathedral as obscene.

The Boston Herald reported Monday the justice made “an obscene gesture, flicking his hand under his chin” in response to a question about whether lawyers might question his impartiality in matters of church and state. The incident occurred after he attended Mass at the Cathedral of the Holy Cross.