Does this downloaded copy of the JS code come with a license that secures the four essential freedoms to users? Usually it doesn't unless you're on GNU.org or a MediaWiki site.
I understand the intent of the four freedoms. I also understand why people would enjoy those freedoms granted to them by other software writers. But what I do NOT understand is why people think they're entitled to any of it. If I write software and license it in some FSF/Stallman-approved fashion, good for you, and good for everybody (theoretically).
But if I decide I don't want to license it in this very liberal way, what gives you the right to demand a license? If I make some js widget-driven site and minify all my code, obscure it, and whatever else... that's my business, right? You can use it or don't use it -- it's all the same to me. Maybe I'm ignorant of licensing. Or maybe apathetic. Or lack of time. Or all of the above? If you sent me an email about my site and demanded licensing stuff, I'd tell you to go find a hobby...
Yeah, it's a US government site. And...? How is it that you (a hypothetical US citizen) using the site making you sacrifice your freedoms?