Actually, you can't. Exchange-traded ETF's are regulated in the same way other securities are, except the business has no moving parts, so it's extremely easy to audit. Here's an explanation of how GLD works.
Right. Which means the laws are only enforced against people that Obama doesn't like. That's the main vulnerability -- you cannot assume the regulators are honest.
I know the way it is supposed to work, but evil men have a way of getting around the rules.
For instance, Obama, born in Kenya to British National father and underage mother is not eligible to be President. But...a second term for the imposter in the White House.
And again, the 2nd Amendment automatically nullifies all gun laws. But...20,000+ gun laws.
And how about, the 5th Amendment enshrines our right to not be witnesses against ourselves. But...illegal enforcement of income taxes.
You get the idea.
Somebody is manipulating the market. Short supply should mean that the price goes up, not the other way around.