The Cold War Creator

On Friday (10/25/13) we learned a few events that led up to the cold war. We learned that President Truman invited Winston Churchill to the U.S to give a speech to his people. The speech Churchill gave was called "The Iron Curtain" in which he stated that the USSR had drawn an iron curtain around Europe. He also said that communism was bad and we should try to spread democratic ideas. When Stalin heard this speech, he interpreted as a call to arms. He compared Churchill to Hitler and he said capitalism would bring war. George Kent (U.S) sent an 8,000 word telegram to the U.S saying that Stalin planned to take over the world and spread communism. These events lead me to the conclusion that the USSR is to blame for the start of the cold war. Why? Well first of all Stalin did not hold free elections in the states he had regained and also he did not give people freedom because he spread communism ideals. The U.S was only trying to keep Stalin in check by sending over troops to stop communist uprising, but maybe this was also a wrong thing to do. What do you guys think?