In early 1998, Larry Summers, called Born to "chastise her for taking steps he said would lead to a financial crisis. But Born kept at it, unwilling to let arrogant men undermine her good judgment. But it got tougher out there. In June 1998, Greenspan, Rubin and the then head of the SEC, Arthur Levitt, Jr., called on Congress "to prevent Ms. Born from acting until more senior regulators developed their own recommendations." (Levitt now says he regrets that decision.) Months later, the huge hedge fund Long Term Capital Management nearly collapsed--confirming some of Born's warnings. (Bets on derivatives were a key reason.)

"We didn't truly know the dangers of the market, because it was a dark market," says Brooksley Born, the head of an obscure federal regulatory agency -- the Commodity Futures Trading Commission [CFTC] -- who not only warned of the potential for economic meltdown in the late 1990s, but also tried to convince the country's key economic powerbrokers to take actions that could have helped avert the crisis. "They were totally opposed to it," Born says. "That puzzled me. What was it that was in this market that had to be hidden?"

There's a $700 trillion elephant in the room and it's time we found out how much it really weighs on the economy.

Derivative contracts total about three-quarters of a quadrillion dollars in "notional" amounts, according to the Bank for International Settlements. These contracts are tallied in notional values because no one really can say how much they are worth.

The total value of all the stock markets in the world amounts to less than $50 trillion, according to the World Federation of Exchanges.