In general I'd say I'd keep some money in Real Estate as it is unlikely to be taken away, it maybe taxed but not taken away 100 percent. I'd keep some physical gold in a safe deposit, but not in the US. In general when everything goes bad, equities are better than government bonds and other bonds.
The MF Global mess should wake up people. The key is to have your funds and assets in a secure place and secure custodian, not someone that goes and gambles with your money. But who knows who gambles and who doesn't gamble.