Simple, easy and you fix more than just a revenue problem. Knight Capital, flash crash of 2010, FB IPO, glitches and more--the markets would benefit (as in we the people) from the elimination of the carry tax on short term trades. If the sacred cows, (read deep-pocketed campaign contributors) had to pay 35% in short term capital gains tax instead of the infuriating 15% carry trade, there would be far more revenue at least initially, and then as the traders realize significantly less profit than they do currently, they will being to exit the high frequency trading arena which will ameliorate the present-day situation where exorbitantly high volume puts the market and us (we the regular people) at risk. Now if someone just had the courage and conviction to do the right thing while commiting political ....