Earlier I said that all of the world's CANDU reactors operate in accordance with the rules of the International Atomic Energy Agency. All sharing of nuclear technology and the buying and selling of goods and services adhere to nuclear cooperation agreements, which set out stringent non-proliferation requirements. So, all nuclear activities are undertaken with the utmost concern for non-proliferation, safety and security.
On October 21st, 2009. See this statement in context.