Google Tom Gross.

Amongst other stuff you will find this on his own website: -

"Tom Gross has worked as a consultant for a variety of governmental and non-governmental organizations, including advising the UN on the political and social situation of the Roma. In addition, he has worked for the Jan Hus Educational Foundation (a Brno-based educational charity), for the Prague Tolerance Foundation's "Families After the Holocaust", as an International Media Consultant for Ben Gurion University in Israel, and as a consultant to the Jewish Museum of Prague"

My point I think.