AP Images/Harry Hamburg One of the biggest catastrophes of the 2008 financial crisis came out of the AIG Financial Products division, whose disastrous trades eventually led to a $182 billion bailout of the insurance company. One of the largest financial market blowups since the crisis came from the Chief Investment Office of JPMorgan Chase , where similar trades backfired and cost the company at least $6.2 billion. The common thread? Both of these offices, despite being subsidiaries of American corporations, were based in London, and they enjoyed a degree of autonomy, both from their management teams and from federal regulators, who were unable to recognize the outsized risk until it was too late. The Dodd-Frank financial reform law intended to end the practice of financial industry behemoths shifting away their riskiest practices from U.S. regulators’ prying eyes. But a rule that would subject the $630 trillion global derivatives market to the same regulations, no matter the location...