A bipartisan group of U.S. Senators have co-signed a letter asking U.S. Treasury Secretary John Snow to investigate whether Red China is manipulating its currency to gain a trade advantage in the U.S. market, writes William Hawkins in the Washington Times. This followed a warning on the same issue by Federal Reserve Chairman Alan Greenspan. Based on the first half of this year, the 2003 U.S. trade deficit with Communist China will reach $120 billion, the largest and most lop-sided deficit in history. In June, Red Chinese exports rose 33 percent from a year earlier to $34.5 billion, while production...