More economical administration of the law. Seventh. A bar against the issuance of any visa to any person who has or does adhere to. advocate. and follow "the principles of any political and economic system or philosophy directed toward the destruction of free competitive enterprise and the revolutionary overthrow of representative governments." Mr. President. we recognize that every care should be exercised against the use of fraud. the possible infiltration of secretly "planted" persons. and the admission of any person found undesirable on account of moral turpitude. mental condition. crime. disease. character. or incapacity for selfsupport. A complete bar to admission is past or present membership in the Nazi.