mum and dad investors burned by hft, page-9

A broader question, though, could be why the nation's central bank is so concerned about irregularities in the stock market.

Nicholas Colas, chief market strategist at ConvergEx in New York, suggests one answer: That the Fed's quantitative easing programs hinge on an efficiently functioning market.

sums it up really the market is becoming but has not quite become disfunctional

That alone one would hope would cause urgent action but I doubt it