@condret @realcaseyrollins @feld @alex It's one area where the government is actually in a position to be uniquely useful. They can deal with validating and publishing the hash list due to the legal concerns, all everyone else has to do is just check against it.

Unfortunately it looks like a case of misaligned incentives though. The FBI runs an effective system for preventing CSAM and avoid 100,000 incidents? Their budget gets slashed because CSAM has become less of a problem. Arrest 100 people for downloading CSAM because it got uploaded to various sites? Promotions and awards all around.