The “Declaration of National Housing Policy” in the Housing Act of 1949 establishes as one of the national objectives “the realization as soon as feasible of the goal of a decent home and suitable living environment for every American family”; and it requires programs “to encourage and assist ... the stabilization of the housing industry at a high volume of residential construction”. In view of the importance of housing, there is a natural hesitancy on the part of any policy maker to take actions which he considers to be detrimental to the housing industry.