Answer:
Federal government spending went up to very high levels during World War II. After plummeting immediately after the war, it went back up (although not to World War II-levels).
Step-by-step explanation:
Besides funding gigantic military-industrial operations, the government also funded for military purposes a huge part of the most advanced scientific and technological research and development in the postwar United States, which led Eisenhower to warn also against the "danger that public policy could itself become the captive of a scientific technological elite" (Eisenhower 1961, 654).
From 1950 to the late 1960s, the dominant Cold War ideology and a bipartisan consensus on defense and foreign policy, focused on global containment of communism and deterrence of a Soviet attack on the United States or its allies, gave nearly unchallenged support to the unprecedented allocation of resources to the "peacetime" military establishment.