What is at least one way that either safety or politics has affected what NASA has done?
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the explosion of the challenger changed nasa's leak checks and people wernt aloud to be on the base.

Explanation:

c. as a force against soviet invasion of afghanistan

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.