Information security

The Spy Satellite Secrets in Hillary’s Emails

Most seriously, the inspector general assessed that Clinton’s emails included information that was highly classified—yet mislabeled as unclassified. Worse, the information in question should have been classified up to the level of “TOP SECRET//SI//TK//NOFORN,” according to the inspector general’s report.

You may have seen acronym lists like these on declassified documents before—and glazed over them. This is the arcane language of the cleared cognoscenti, so let me explain what this means: