in a new report for the u.n. security council, the u.n. is investigating two north korean and iranian arms companies suspected of being in violation of sanctions. >> it's an investigation into who exactly is at the north korean embassy at tehran and what they're doing there, because the member state told us that north korea's most important arms trading companies and ballistic missile trading companies, namely comint and green pine, an associated corporation, both of which are blacklisted by the united nations, are extremely active in iran now. >> joining me now is ben rhodes, former deputy national security adviser in the obama white house, now an nbc political contributor, and nbc national security and global affairs reporter dan deluse who has been