Although I do not believe that they interfere with the gold market daily I do think they interfere at key points to keep it contained on the rising trend line. They are willing to concede an increasing price as long as it does not go too high which would signal a larger problem in the US economy and the US dollar.

There are no longer any free markets just interventions and we have to accept that reality and try to adapt to it.

They are currently preparing for QE3 by

1./ Pretending the economy is recovering and it will not be needed.

2./ Pushing down the key commodities prices to moderate inflation before hand.

This is the modern day version of price controls. No mater how they are implemented they always eventually lead to shortages and then to higher prices.