@fluffy @p Redactions are made when information within a document is exempt from the scope of FOIA.

There are nine broad exemptions.

1. Classified information.
2. Information about Internal personnel rules and practices of the agency.
3. Information blocked from disclosure by another law.
4. Trade secrets or commercial or financial information that is confidential.
5. Privileged communications within or between agencies.
6. Information that would invade a private citizen’s privacy.
7. Information for law enforcement purposes that could fuck up legal proceedings, constitute an invasion of privacy, reveal a confidential source, reveal techniques or practices of law enforcement, or put someone in danger.
8. ANY information about the supervision of financial institutions.
9. Geological information about wells.

Anything they can tie to one of these they can strike out.