>I'm really not sure where it stands with regard to instructional content in general - however some such content has been constrained before; usually regarding

>I'm really not sure where it stands with regard to instructional content in general - however some such content has been constrained before; usually regarding weapons (or really any content that the government can argue is weapons related Common misconception. You can post the machinist drawings for any unclassified (or classified, if somehow you came across them without having signed any paperwork related to security clearances). That is protected by the Courts. Where you get into hot water is ITAR and restricted exports where free speech runs into the whole national security/foreign affairs jurisdiction by the Feds. You cannot post the manual for an F-16 for instance, in such a way as it could be accessed by adversaries of the United States. Access to that type of information has to be gated behind some form of arcane onboarding process to ensure one is actually authorized to see it. There was an attempt at gating 3d printed gun patterns I think, but all the courts would let through is that a manufacturer must ensure the recipient is a U.S. Citizen, so it switched from published on website, to shipped on CD iirc. Haven't checked on recent developments.