 He serves as the President of the European Council on Tolerance and Reconciliation (ECTR) and is known for his extensive involvement in the promotion of tolerance in the modern world.He is also president of the International Luxembourg Forum on Preventing Nuclear Catastrophe and is engaged in discussing and elaborating ways to stop nuclear proliferation and prevent nuclear catastrophe.Kantor is associated with and serves on the boards of many communal and civic organizations and has made significant contributions to the development of essential European concepts including Model National Statute for the Promotion of Tolerance and "Secure Tolerance," whereby tolerance as an objective can only be assured with personal security for the individual and the repression of intolerance as a society.