On North Korea, there's basically nothing. It's not a NATO role.
On Iran, NATO has not taken any formal steps. There is a process taking place in other fora. Were Iran to become a threat to the alliance or to NATO territory, of course it would be in a different ball game. The 30-plus countries I mentioned that are developing ballistic missile capabilities include Iran. Those 30-plus countries, including Iran, were the motivation for building the NATO missile defence system. You can interpret it from there.