LONDON (Reuters) - 1/ALL TOGETHER NOWIn 1971, ex-U.S. Treasury Secretary John Connally bluntly informed his fellow finance ministers: "The dollar is our currency, but it's your problem." Half a century on, that still holds true: desperate companies and banks around the world have been stumping up big premia in recent days in their rush to buy greenbacks -- for trade, debt repayments, or just to hold.The liquidity squeeze that saw the financial markets' plumbing creak prompted the Fed into..