key 
A U.S. online piracy case brought the shutdown of Megaupload.com, one of the world’s biggest file sharing sites, along with 4 arrests in New Zealand. It comes just after a massive internet protest over new U.S. anti-piracy laws. (Jan. 20)
Article source: http://www.washingtonpost.com/business/economy/2012/01/30/gIQAX3ogdQ_story.html