Pokemon Go is a phone ap and it's the latest craze. People wander around and collect characters. Sites like the Holocaust Museum are complaining, though, about Pokemon hunters. They say it's not respectful. Personally, I think anything that gets young people through the doors of a museum--any museum--is a good thing. Make them take a tour. They might accidentally learn something. As my son said (just before I punched him), a place like the Holocaust Museum is probably pretty dead.
(He swore that he didn't realize what he was saying until he heard it. I hit him again anyway, just in case.)