On December 2, the New York Times published an editorial titled Yahoo Betrays Free Speech. The piece discussed how Yahoo helped the Chinese government find the identities of two Chinese journalists who both received ten years in jail for "disseminating pro-democracy writings".
Here's a quote from the editorial:
You may have seen the following YouTube piece on the Yahoo settlement (or something similar) last month:
I encourage you to read the New York Times editorial and watch the video clip - good classroom material for discussion from political, legal, business/financial and even technological (how do they do that?) perspectives.