How did Elie Wiesel and fellow Jews not know about the concentration camps/Nazi exterminations?

Question

Early in Night, he says it’s 1941, which would mean the war has been going on for a few years or so.

Some of the “foreign Jews” get deported, but Wiesel and his townspeople all just resume life as normal until it’s too late, and then they get rounded up too.

Before the “too late,” how did the Jews NOT know about concentration camps? And Germans rounding up Jews? Was news THAT slow to travel? Or did they just think it wouldn’t happen to them?

Edit: I guess I’m mostly referring to the period after Moishe’s (and the other foreign Jews’) deportation and account of the executions.

Thanks

In: 3

Answer 1

By then almost the entire Jewish population of Nazi occupied Europe were rounded up and placed in ghettos. Once inside, they had virtually zero contact with the outside world. No radio, no telephone, no newspapers, no mail.