“We believe these allegations regarding Google’s search engine practices raise important competition issues,” wrote Kohl and Lee, whose committee is already investigating whether Google abuses its power in online search. “We are committed to ensuring that consumers benefit from robust competition in online search and that the Internet remains the source of much free-market innovation.”
Google fields more than 65 percent of Internet searches in the U.S., according to ComScore market research, and that domination has led to increased scrutiny of the company over the past several years.
http://news.cnet.com/8301-1023_3-57345352-93/senators-call-for-ftc-probe-of-googles-results/