It is laudable that while just complying and letting the U.S. Govt. get at any data would be the cheaper move business-wise, Yahoo seems to made somewhat of an effort to fight back.
It is sad that that they are still unable to reveal what data was being extorted by the USG under the threat of that big scary fine..
Once again Snowden did the right thing -shine a bright light on all these nefarious dealings, and putting unauthorized surveillance front and center in the public mind.