I believe it was Jim Rickards who has been speaking about the new QE 3 coming from the 'Twist'. This is when the Fed sells shorter term notes to support longer term T bills.
http://www.washingtonpost.com/business/economy/fed-considers-buying-more-long-term-treasury-bonds-to-lower-mortgage-rates/2011/09/06/gIQAWHox7J_story.html