I think Canada can continue to export cobalt‑60; it's not a problem. Each country, once it has purchased it, should, however, manage the waste itself.
There are solutions. I am thinking, for example, of the deep drilling that is proposed by the International Atomic Energy Agency. Countries can easily manage small amounts of waste. But bringing all this waste back to Canada and storing it on a hill near the Ottawa River, without ever informing the public, is a deceptive way to proceed. Canada should not be doing this, in my opinion.