Massive government debt by the issuers of all fiat currencies is what is pushing the market to gold and silver. The whales, the world's central banks are loading up on gold because they do not trust each other's fiat currencies, and are decreasing holding of all major fiat currencies. The fiat currency most at risk right now is the Japanese yen, but a major move there could impact others. The son of one of my good friends who works at the currency desk of a major hedge fund calls the US dollar "the least sick horse in line at the glue factory" but that does not mean it is not sick. The huge number of dollars held abroad means that in the event of any run on the dollar, it could get ugly real fast.
Silver is not held by central banks as a reserve, except for one (Russia), and is now more of an industrial metal than a precious metal, at least in terms of how it is actually used, but is still regarded as "the poor man's gold". It tends to be more prone to big swings than gold.
Warsh was always a question mark as to his policies, and blaming Friday's actions on him is a red herring.