As usual, people run their mouth when out of the fomc but become more conservative when they get into the committee. From WSJ:
"Fed Chief Gets a Likely Backer
When Narayana Kocherlakota gets his first crack at voting at Federal Reserve policy meetings later this month, he is likely to support the Fed's controversial $600 billion bond-buying program, giving Fed Chairman Ben Bernanke a key ally."
Says on the Q&A the QE2 was likely the right decision