As the U.S. Federal Reserve grappled with the aftershocks of financial crisis, the Chinese, like many others, suffered huge losses from their investments in American financial firms -- from Lehman Brothers to the Primary Reserve Fund, the money market fund that broke the buck.

The cables, obtained by WikiLeaks, show that escalating Chinese pressure prompted a procession of soothing visits from the U.S.Treasury Department. In one striking instance, a top Chinese money manager directly asked U.S. Treasury Secretary Timothy Geithner for a favor.