The most difficult ones to deal with, of course—and we've had a case in the last few days—are parental child abductions. Those are the most difficult ones. There is a bit of international law in this area, but the international law is based on the European-North American model of the family. Many parts of the world have other laws in this area, and it makes it very difficult in those cases.
On February 8th, 2018. See this statement in context.