As I understand it, the main issue with HFT are two fold: * some cases of insider trading at under-a-microsecond rhythm, that sound like faster-than-light favo

As I understand it, the main issue with HFT are two fold: * some cases of insider trading at under-a-microsecond rhythm, that sound like faster-than-light favoritism but are actually covered by existing legislation (you just need to update judges and the SEC on basic technological feasibility); * dangerous unmanned behaviour -- flash-crashes. Front-running has always been presented as controversial at best, i.e. taking cents from people who could spare dollars; more often illustrative of finance’s excess (spending the GDP of a large country to establish even faster lines between cities already well connected, not that makes any more sense than blaming Formula 1 racing for going above the legal limit). I understand his passion, and the “I’m a geek and I work for a small company facing Goldman” inferiority complex must be crushing -- he writes himself ‘A fervent defense’. However, that seems to be missing the key issues most people have with such technology left unmonitored.