I think overall, the 1951 definition is the one we have incorporated into the Immigration and Refugee Protection Act, word for word. That 1951 definition has proven itself to be incredibly resilient and valuable. If it were to be changed, I think it would be an international effort. Whether we would want to do that isn't, I think, up for debate, but it could become more restrictive if it was going to an international debate on what the definition might be.
You're quite right. I think it does not deal with internally displaced people. That might be worth a further discussion, but probably a separate discussion rather than within the UNHCR definition or the refugee definition.