This is not the first time he has done something like this if memory serves me. In late 2008 Mr. Swartz and Carl Malamud went to select libraries, ones with free PACER access, and proceeded to download ~700 GB of information that was behind a paywall. After which they made all of it available on Mr. Malamud's website.
http://arstechnica.com/tech-policy/news/2009/04/case-against...