They not only hurt American consumers and tax payers, but many poor farmers around the world, as Nick Gillespie explains in this short Reason TV documentary:

Agricultural Subsidies – Corporate Welfare for Farmers

“U.S. farm programs cost taxpayers billions each year, significantly raise the price of commodities such as sugar, undermine world trade agreements, and contribute to the suffering of poor farmers around the world. It’s bad public policy, especially in these troubled economic times.”