In 1972, federal NDP leader David Lewis launched an attack on Canada's corporate welfare system, citing the millions of dollars in government subsidies to the wealthy Aluminum Company of Canada, Canadian Westinghouse, and the Michelin Tire Company. Later Lewis added Shell Canada, Denison Mines, Cominco, Dofasco, Falconbridge, Bell Canada, Canadian General Electric and dozens of others to his list of corporate giants permitted by government to escape paying their fair share of income taxes. In Louder Voices: The Corporate Welfare BumsLewis provided the detailed facts and analysis supporting his charge that "government and big business are holding hands--in your pocket."