HFT "provides market liquidity"- is a weak unsubstantiated argument compared to the risks demonstrated repeatedly. This was obviously authored before the Syrian Electronic Army Twitter hijacking, we saw a 200 Billion dollar move on the S&P, if the SEA took positions, we just allowed the markets to be used to generate millions of dollars for terrorism. It more than demonstrates the new potential to time actual terrorist events, or feigned events, to trading.

There should be mandatory hold times, kill switches, per transaction tax, and anything that makes co-location and "anticipation" trades obsolete. In the real economic world the only real outcome of HFT is to skim profits off of legitimate financial trades, period. Everybody knows this, and that "market liquidity" is now a buzzword on the street for muppet tax.

I cannot believe that someone would go on record as an advocate for HFT unless they are providing spin for legislation.

HFT is one of the very wrong things about finance and investment today, there is not two sides to this argument, pretending there are is immoral.