The Federal Food Stamp Act provided for the distribution of food stamps to needy households. In 1971, section 3(e) of the statute was amended to define households as limited to groups whose members were all related to each other. This was done because of congressional dislike for the lifestyles of unrelated hippies who were living together in hippie communes. Moreno and others applied for food stamps but were refused them because the relationship requirement was not satisfied. An action was brought to have the relationship requirement declared unconstitutional. Is it constitutional? Discuss why or why not. [USDA v Moreno, 413 US 528]