Former FBI Director James Comey’s explanation for not prosecuting Hillary Clinton was always improbable. Now it seems impossible. The Espionage Act makes it a crime to mishandle classified documents “through gross negligence” (18 USC 793-f). Punishment upon conviction carries a penalty of up to 10 years in prison. With 110 emails on Clinton’s private server that were classified at the time they were sent or received, the Democratic nominee for president could have been prosecuted on 110 separate felony counts. Yet Comey scuttled the case. But a story in The Hill this week by John Solomon says a newly discovered...