What was the two key points of Winston Churchill's iron curtain speech?

Another possible answer is that it hardened the USA people's opinion on USSR 's behavior of expansionist. A supporting evidence is that opinion polled showed that 35% people trusted USSR in 1946. This is to be compared 55% in 1945. Thus this further influenced the containment policy by Harry Truman

• Another notes - the phrase "iron curtain" is immature during 1946. Stalin was still pursuing a differentiated policy in Eastern Europe.

AnswerHe had a fear of another world war that involves fighting against the communist regime and that the so called iron curtain is blocking some of the countries connection to the western countries because of the communist terror.