Senator Christopher Dodd, left, a Democrat from Connecticut, talks with Senator Richard Shelby, a Republican from Alabama, during a Senate Banking Committee hearing with U.S. Treasury Secretary Timothy Geithner, Washington, D.C., U.S., on Thursday, Sept. 16, 2010. Geithner said China needs to allow a "significant, sustained" rise in its currency as lawmakers called for the U.S. to toughen its stance on the yuan. Photographer: Jay Mallin/Bloomberg

Photo by: Jay Mallin

Senator Christopher Dodd, left, a Democrat from Connecticut, talks with Senator Richard Shelby, a Republican from Alabama, during a Senate Banking Committee hearing with U.S. Treasury Secretary Timothy Geithner, Washington, D.C., U.S., on Thursday, Sept. 16, 2010. Geithner said China needs to allow a "significant, sustained" rise in its currency as lawmakers called for the U.S. to toughen its stance on the yuan. Photographer: Jay Mallin/Bloomberg