Gyroscopic Investing

The folks at GATA are pretty excited about this. Even the head gold trader at Goldman Sachs now believes that government intervention in the Gold market is the likely culprit for recent price movements:

http://www.zerohedge.com/news/goldman-h ... ing-higher

The article and commentary appear to speculate that the authorities are manipulating the price of gold. Where is the proof that government agencies are directly impacting commodity price movements?