Doesn't this just get us a bit closer to Big Brother? Tweets, emails and other electronic communications can be considered "government documents" and must be preserved. The National Archives handles official government materials, while the Library of Congress' mandate is to deal with anything that may have long-term historical interest. But how much digital information are we talking about? How about all of the tweets from Twitter's archives? "We have an agreement with Twitter where they have a bunch of servers with their historic archive of tweets, everything that was sent out and declared to be public," Lefurgy said. The archives don't contain tweets that users have protected, but everything else â billions and billions of tweets â are there." http://www.federalnewsradio.com/?nid=247&sid=2658996