Why was it a problem for the USA that China turned Communist to n 1949

Because the US was using the policy of containment

Explanation: During the cold war the US adopted the policy of containment to completely stop the spread of communism and with china turning communist it could lead to a whole chain of other smaller countries that are looking and china to turn communist and that was a major problem to the US.

explanation:

a trial judge has broad powers in his courtroom. the judge's decision is usually final for the duration of the trial, and the party's one special type of witness is an expert witness.