The U.S. Congress is demanding that currency manipulation be addressed, and now U.S. Treasury Secretary Jack Lew has some explaining to do. Currency Devaluation Rationalized The U.S. Congress is demanding that currency manipulation be addressed, and now U.S. Treasury Secretary Jack Lew has some explaining to do. In the oblique speak of finance ministers and central bank governors, the G20 Communiqué yesterday out of Istanbul explicitly says:...current economic conditions require accommodative monetary policies in some economies...We will also cooperate to manage spillovers arising from our domestic policies. We will stick to our previous exchange rate commitments and will resist protectionism.In short, the world's leading governments broa...