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Experts have advised U.S. financial regulators to place tougher rules on high-speed computer trading to prevent a sequel to the May 6 "Flash Crash." But technology is driving stock markets to merge, raising questions about whether bigger exchanges will make things worse. New York bureau chief Heidi Moore reports.
Because milliseconds matter in the world of high-frequency trading, the new cables being laid between New Jersey and London will take cable speed from 65 milliseconds to below 60 milliseconds.
Federal regulators are still looking into the causes of the so-called flash crash that happened back in May. The Securities and Exchange Commission says it may have some new leads. Reporter Jeremy Hobson talks about what the SEC's latest findings are.