William R. Richardson: “Russia needs to get tougher and they are not doing it. I think these U.N. sanctions were the strongest that we have ever…”

It's a positive sign, the fact that you had all the foreign ministers in one room, especially Ukraine and Russia, although Russia refused to talk directly with a Ukrainian.

We absolutely need them to keep enforcing sanctions or the pressure on North Korea will deteriorate.

Well, success for me would be a commitment by North Korea to dismantle some--some of their weapons, missiles.

China has not exactly helped us when it comes to moderating North Korea.