Stephen B. Jacobs has a warning from the past for America today: It’s happening again.

At 79 years old he is among the youngest of the living Holocaust survivors and was born six years after Adolf Hitler came to power in Germany. But Jacobs can remember life in the Nazi concentration camp at Buchenwald; what the Nazis did to him, his family, his friends.

He worries about what’s happening right now in America, where he has lived and prospered since arriving a couple of years after Buchenwald’s liberation on April 11, 1945.