In his most recent speech, Ben Bernanke spoke about the dollar's weakness and its impact on producer and consumer price inflation. Bernanke has moved from focusing entirely on stability and growth to fighting inflation and the dollar decline. Folks such as Martin Feldstein recently said that the US didn't have a strong dollar policy, but it appears as though the Fed may have switched gears to fight inflation, and sees a strong dollar as a means to do so.

Snapshot asks, will the Fed's stance on the dollar continue to push the greenback higher?

Ben Bernanke - Remarks on the economic outlook
PIMCO - Exchange Rates Since the Last Global Financial Crisis: What My Crystal Ball Didn't Tell Me in 1998
Societe Generale - Is the nascent USD rally the last hurray before another fall?
Brad Setser - Does the US still have a strong dollar policy?