. >> my question is based on the fact that one of the most well-known holocaust deniers is arthur butz who is not a historian but he was in electrical engineering professor with a phd at northwestern. my question is, how do we balance insisting on the fact that the holocaust happened with a certain points in our history with making history accessible. maybe not to people like arthur butz, but by keeping the holocaust street accessible while also insisting it happened, and keeping that argument in the forefront. >> you want to talk about instagram? [laughter] >> sure. all sorts of technology. before this, we had a sort of two-pronged conversation and diluted to this when i talked about eating young people where they are, right -- about meeting young people where they are, right? i used an example, a series of instagram stories. i believe it was a film maker in israel who did this. instagram stories, maybe someone here can fact check me if i get the definition of instagram stories a little bit wrong. they are essentially short video clips that can be posted on a regular basis on an insta