It didn't "scare" the US, they already had a satellite planned, a much more capable one. They just didn't rush to get it launched first.
During this time there were two world powers: US and USSR, both with a totally different lifestyle (democracy and communism). The space race showed USSR was more advanced then we in the United States. It showed the rest of the world that communism was the way to go, and then the red scare and domino effect started coming around.
thunder bolt, and eagle to scare his enemies
to scare of the enemies in ancient china around 1000 B.C.
someday...nobody knows when, this whole 2012 scare happens about once every generation
He was a greek god and he ruled harshly using bolts of lightning to scare the people of earth
That capability indicate that the US was well behind in the Space Race.
A revolution in Russia
A revolution in Russia
A revolution in Russia
Frank J. Fleming of imao.us.
A revolution in Russia
Communism in Russia
The Revolution In Russia
The impact of the Bolshevik Revolution in Russia
A revolution in Russia
The communist revolution in russia in 1917
Communist russia was increasing in size and control. making the us govnt scared. also Truman hated communist. leading to the red scare