Explain why it can be said that the U.S economy after World War Two raised the living standards of Americans sufficiently to make it a predominantly middle class country, including among these factors, an explanation of the long term effects of the Wagner Act (National Labor Relations Act) of 1935 and Fair Labor Standards Act of 1938 in the improved overall national living standard by the 1950s. Explain why the lifestyle of the U.S. middle class arguably has declined since the escalation of the Vietnam War in the mid-1960s, discussing the economic effects that war, certain private sector business practices and the "Government Rule Book" have had on the widening gap between rich and poor and squeeze on the middle class from the 1970s to the present.?