Hill Peers Into Market's Fast Lane.

The article discusses heightened scrutiny in the U.S. of high-frequency trading. The U.S. Securities and Exchange Commission is investigating whether stock exchanges have provided high-speed traders with advantages over other traders. Special attention is paid to Dave Lauer, a former employee of a high-frequency trading firm who will voice his concerns about the industry during a September 20, 2012 appearance before the U.S. Senate Banking Committee.