As a follow-up, I'm a member of the Canadian delegation to the International Holocaust Remembrance Alliance as a representative of B'nai Brith. That's one of the subjects of discussion there.
There's this protocol we mentioned. Basically, when you're dealing with international phenomena, you need international assistance and international co-operation. There's always the possibility of blocking, at least in some cases. Something you might also consider is the use of the Magnitsky legislation, if you can find identified perpetrators. That might be useful as well.