I don't think this case comes up in the Venn diagram of realistic scenarios.
If the work is yours, you can use DRM.
If the work isn't yours and it's copyrighted and you know who the author is, you ask permission to use the work, and permission to apply DRM.
If the work is public domain, you don't apply DRM.
The scenario you describe is works for which you don't know the copyright status. Your choice is to either go ahead and use the work without DRM, or apply DRM and potentially face consequences.
In this last case, the case you seem so concerned about, what purpose would DRM serve? It isn't your work, you should not care if anyone copies it.
The Soviet Union obtained the technology through espionage against the United States and the UK. China's program was greatly accelerated with help from the Soviet Union. China's current program is based on espionage against the United States, dating back at least to the 1970s.
In terms of utility to effort ratio, I think it's right to start with national legislatures. However, I hope there will eventually be a dataset that's as deep as Political Graveyard for the entire planet, even if just to satisfy my inner data nerd :)
Better than good enough: it's good. It's also preferable to something more SPAish.
To be clear: I've professionally written such javascript only Single Page Applications, and they worked out really well, since they were all dynamic, real-time changing content all the way.
