I find BitBucket a much superior alternative, so I haven't hosted anything in GitHub for a while. It also allows closed repos, which, while not great for open-source, it's great when I just want to put my grocery list in a repo for whatever reason.
But I can't guarantee that it hasn't, or won't in the future do the same as the hub of gits and go Full Retard... crackdown mode policing.
Step 1: Send FOIA request to FBI to get these "secret" documents. Step 2: Laugh as the FBI sends these documents fully redacted with black ink. Step 3: Download the unredacted documents from their original sources or any other uncesored source. Step 4: Reply to the FBI, saying that their document was unreadable, so you did them a favor and removed all of the black ink for them. Attach said unredacted document. Step 5: Hilarity.
Can you maybe please give the job to ship the printers to your legal department, as opposed to your support team? They seem way more enthusiastic about sending C&D letters, maybe they can use the same energy to speed up the shipping of the 3d printers?