I was shopping for a new vacuum cleaner when a saw a portable carpet cleaner. Basically a vacuum with a precision nozel bolted to a water sprayer. It has been a complete game danger for cleaning up the mess my cats would sometimes leave. Although it is still not as effective as the course of dewormer their vet prescribed.

Legally yes. Practically, the people handling the FOIA request do not know about it and do not have access to it, so they will not look at it when responding to a FOIA request. Also practically, if you submit a FOIA request for operational details of military action, the response will be no, and every judge you stand before to challenge that no will side with the government.

Because the thing people refer to when they say “linux” is not actually an operating system. It is a family of operating systems built by different groups that are built mostly the same way from mostly the same components (which, themselves are built by separate groups).