It really doesn't matter that it exists but...
If you want to read some one who has made a career of studying silver manipulation on the COMEX then read the last dozen or so articles by this fellow.
http://www.investmentrarities.com/tb...
Is manipulation by the huge short selling a problem? No, unless you are a small investor who thinks he owns silver because he has a piece of paper that says so. There is a huge supply/demand problem looming.
Doug Casey has done a lot of work on Gold and a google on his name will reveal a lot about that. Would anyone be surprised that the Fed banks want the price low to make their inflation numbers and currency look good. But as long as the printing presses keep printing money gold will seek its true value.