we should come away from Mr Bernanke’s testimony with at least two conclusions: the chairman seems more cautious about the growth outlook when compared with other recent public statements; and he wants to push fiscal sustainability issues clearly away from the Fed’s domain and back where they belong, with Congress and the administration.
Mohamed El-Erian

Prior to 2009, it was enough to count on the recycling of the U.S. trade/current account deficit to fund Treasury borrowing requirements. Now, however, with that amount approximating only $500 billion, it is obvious that the Chinese and other surplus nations cannot fund the deficit even if they were fully on board – which they are not. Someone else has got to write checks for up to $1.5 trillion additional Treasury notes and bonds.

…the buyer of last resort in recent months has become the Federal Reserve, with its publically announced and near daily purchases of Treasuries and Agencies at a $400 billion annual rate.
Bill Gross