Ralph Nader led a crusade beginning in the late 1950s for consumer safety, especially automobile safety. In his 1964 book Unsafe at Any Speed, published in the context of a Senate hearing on automobile safety, he offered evidence that automobile manufacturers, particularly General Motors, had knowingly cut corners on safety features in order to maximize profits. His book was instrumental in leading to the creation of the National Highway Traffic Safety Administration, which established and enforced safety regulations on automobiles. He started an organization known as the Public Interest Research Group that advocated and lobbied for consumer safety regulations, and organized another group by the name of Public Citizen with similar goals. He has published a number of books aimed at increasing consumer awareness, both of product safety and wider political issues. In short, Nader argued for consumer power in opposition to expanding corporate power, and he thought that people, properly organized, could reform the market. He was not the first to do so, in fact his movement could find its ideological roots in the Progressive Era. But he was (and remains) instrumental in pushing for reforms that make the consumer, rather than the producer, the locus of power in the marketplace.