Price manipulation techniques are intentionally difficult to understand, detect, and prove, and the rise of high-frequency trading has further complicated the task. This book maps the issues and traces the U.S. government's efforts to properly regulate, monitor, and prevent financial speculation and price manipulation in various markets. The coverage begins with the period from the late nineteenth century to the first congressional efforts at regulation in the 1930s and continues on to the present, with a full chapter on the legal and financial aspects of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010. All the U.S. financial institutions involved with such regulation--the most prominent of which are the Securities and Exchange Commission created in 1934 and the Commodity Futures Trading Commission created in 1974--are discussed here in detail. Also covered are major financial imbroglios such as the Enron scandal and the ill-timed speculation in natural gas prices that brought down the Amaranth Advisors hedge fund. The last chapter discusses the difficulty of initiating successful prosecutions of financial fraud and price manipulation and proposes a new approach to preventing manipulative practices.