It is all up to us to prevent boarding in the first place. See tagline.
Thanks for the post
Bttt
Man’s inhumanity to man. Hideous. Incomprehensible.
Many nights he would wake up screaming loudly, go into the kitchen and self-medicate.
During the day a well-adjusted successful businessman, never a hint of anything.
We often discussed our military experiences. Only once he mentioned Dachau and said, "I wish I had never been there and I wish I had never looked."
After he passed his wife and children asked about his collection of army gear and Rainbow Division flag.
I was shocked to learn they knew nothing about Dachau!
Lower right about a week before the end of the war. 
From an article in The Times of Israel:
“George Gross, a tank commander, said: ‘Everyone looked like a skeleton, so starved, their faces sick. And there was something else. When they saw us, they began to laugh with joy, if you can call it laughter. It was more like an outburst of pure, almost hysterical relief.’”
“A New York history educator restored a lost piece of history after unearthing harrowing footage that depicts US soldiers freeing Jewish people from a train bound for a Nazi death camp.”
“...a Nazi train was ferrying 2,500 Jewish prisoners from Bergen-Belsen concentration camp — where iconic Jewish refugee Anne Franke died just weeks earlier — to Theresienstadt.”
Thresienstadt was not a death camp, but a for-show model camp that exhibited for propaganda purposes well-fed Jews engaging in art and music, and listening to literary discussions and theatrical productions.
In fact, it was a way-station for inmates before they were sent further East to the real death camps. But the author of this piece in the Post did not do his homework. And there was so little homework to do.
To this day, we have jerks who insist that the Third Reich didn’t use death camps to murder 11.5 million people.
Films and photographs were made in large quantity so that the almost unimaginable horror of the National Socialist death camps could always be proven.
At some of the Nazi camps, up to 50% of prisoners died AFTER the camps were liberated. US soldiers gave the prisoners full meals that their emaciated bodies couldn’t handle.
Looks mostly like they were on their way “to” the camps. There was once a film I saw put out as an Official US Army evidentiary piece (with attestations from officers, etc. involved) that was about an hour long. It showed the horrors of what the US Army found when they came upon the camps.