There is always a measure of newness to events that allows otherwise intelligent people to repeat the mistakes of their forebears without looking completely ridiculous.

CENTERFORSECURITYPOLICY: History's tragic farce

The Securities and Exchange Commission is in the middle of a broad market review of their influence on the markets, whether they are getting special access that allows them to jump in front of other traders unfairly and whether they can make mistakes that pose big risks to market stability.

FORBES: Greek Woes Or Trader's Mistake? Take Your Pick