Who has the right to dance at Auschwitz, to make light of the Holocaust, to shoot videos set amid cattle cars and gas chambers?

A home video that has gone viral on the Internet showing a Holocaust survivor dancing at Auschwitz and other Holocaust sites to the disco classic "I Will Survive" with his daughter and grandchildren has brought such questions to the fore.

To some, images of Adolek Kohn and his family shuffling off-beat at such hallowed places is an insult to those who perished; to others a defiant celebration of survival. The incongruous juxtapositions have struck many viewers as funny and chilling at the same time....