The OPM hack, presuming it does include background investigation as reported by Reuters, is a huge blow to national security. Anyone needing to be cleared for compartmentalized clearances (i.e. above the standard TS/SCI) might have had additional interviews. I thought it might be useful to share a synopsis of these documents as context for those considering the counterintelligence impact of the OPM. The most interesting part to me is I can see the five character references I provided, and cross-referencing this with the DIS investigation report.”]
Source: https://realchriseng.tumblr.com/post/120903918276/whats-in-a-background-investigation-anyway-it