> What does it mean for the license to say "within the US"? It means exactly what it says; you have to read the whole thing (or at least the two sentences befo

> What does it mean for the license to say "within the US"? It means exactly what it says; you have to read the whole thing (or at least the two sentences before the CC 1.0 Universal text, which is the operative mechanism by which the second sentence is effected), not a fraction of the first sentence. > Does this mean this software cannot be used outside the US? No. The license explains two things: (1) Without any license, this is automatically public domain in the US because it is a federal government work. (2) The federal government (as the owner of the copyright at creation outside the United States, at least anywhere that applies the common rules underlying the Berne Convention) waives copyright worldwide, and does so via the CC 1.0 Universal declaration (the text of which is then included.) So, it is, to the extent that this is legally possible, copyright-free globally.