China Tries Activists

This article is very short, so first, please listen to the news article: Click here to listen

Questions:
1) Just from listening - in your own words, what was their charge for arrest?
2) Are these three the first to be tried for campaigning for citizen rights?
3) According to the article, what other restrictions has the current president initiated?

If you couldn't catch everything from listening, then please see the article here.
You can see the full BBC article here.
　

Example Answers:
1) They were arrested for gathering without permission, to demonstrate against government secrecy.
2)No, the article says 'dozens', meaning the same as 'tens of' campaigners have been arrested.
3)He has enforced a restriction on broadcasts.