The financial meltdown in 2008 was supposed to change how banks and Wall Street were regulated and taxed. The idea that trading was too volatile and that banks were engaged in numerous risky transactions caught hold. There was a growing belief that financial institutions and investment firms should help fund the cost of future bailouts. However, five years later little has changed. The United States got the Dodd-Frank Act, a heavily watered-down regulation package, and some of the European Union pushed ahead with a financial transaction tax. But Treasury and the SEC are struggling to implement the former, and the latter has run afoul of the complicated European legal framework.