Heck, today's price slump is probably just a coordinated attack by big holders so that they could get more cheaper coins. That's the tactics they got so many BTCs the first place.
The price drops are a result of regulation. Bitcoin's price was parabolic before regulators and those Bitcoiners that pay attention to them sunk their teeth into Bitcoin.
That's just being ignorant. MtGox registered as a MSB with FinCEN. It's all about anti money laundering that the US government wants. Bitcoin trades and prices are not under any regulation, unless MtGox registers as a market maker with SEC and CFTC, and then they would have to follow SEC rules regarding how they should process the exchange orders.