Elon Musk’s Nazi trolling exposes the collapse of America’s guardrails against some of history’s foulest ideas.

With Elon Musk and Mark Zuckerberg rallying around Donald Trump, some users are deciding to quit the social media apps.

The display, created by activist groups Led By Donkeys and the Centre for Political Beauty, has drawn public attention and is under investigation by local police.

The wife of a man who survived the holocaust revealed details about accompanying Musk on a visit to Auschwitz last year.