How does each topic exhibit the fear and paranoia of communism in the 1950’s?

- Joseph McCarthy and “McCarthyism, fear of a nuclear attack on U. S
- Truman’s Loyalty Review program

How did inca develop their road system? a) they used mortar to hold the stones together.b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks.d) they laid roads in the cities, not in the less densely populated deserts.