Which was true of us immigration policy before the immigration act of 1965?

immigration from western europe was restricted.

immigration from the middle east was restricted.

all immigration was encouraged; there were no quotas.

ethnic diversity was encouraged to avoid uniformity.

Hee the american public did not truly take in the horror of adolf hitler's regime until years after the existence of concentration camps was first reported in american newspapers. partly this was the fault of the media, which did not give prominent placement to news of the holocaust. what other factors do you think contributed to the long delay in understanding the holocaust?