[anonymous246]

I think he's talking about the repeated rebuffs to the calls for audits of the supposed gold at Fort Knox by people such as Ron Paul (http://www.foxnews.com/politics/2010/08/31/rep-paul-calls-fo...)

The "conspiracy" theory goes that this gold has either been loaned (that's why Ron Paul phrased his question to also check if they're "obligated") or sold to drive down gold price thereby making dollars are more attractive investment than gold. Hence the call for an audit. The "conspiracy" theory further suggests that all the world's central banks are doing this.