November 27, 2011 at 6:31 am</a>Formerly nations used a proecius metal standard. Fact is I have several dollar bills that say Silver Certificate on them that means the government guarantees that for every silver certificate it has enough silver in vaults to cover the value.Now we have Federal Reserve Notes that is money backed by The Full Faith and Credit of the US Government. Nothing behind it but a government promise. This is why foreign nations are getting nervous about our money because we are in terrible debt and deficit problems and our Full Faith and Credit standing is becoming worthless and confidence in US is eroding.Silver and gold are commodities and traded on open markets and their value changes. We have US twenty dollar gold pieces that contain one ounce of pure gold 99.9999% fine and instead of being worth $ 20.00 it is worth whatever an ounce of gold is worth on any given trading day..could be thousands of dollars. Reply</a>