How did the united states government make it difficult for jews to immigrate to the united states? ( give at least 2 examples)

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others  

it was the "4. potsdam" conference that demanded the unconditional surrender of japan, since it was clear that the japanese would continue to find until the very last man otherwise.