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What was the significance of the Federal-Aid Highway Act (1956)?1. It was a joint project with Canada, which led to a closer relationship between the two countries especially in the face of the cold war.2. It created a large network of interstate highways, which in turn helped create jobs, tourism opportunities, and economic growth.3. It forced private businesses to repair deteriorating highways without drawing from federal taxes or other government funds.4. It is largely regarded as the greatest failure of Eisenhower's administration and went uncompleted due to a lack of funds.

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