his testimony. also breaking, cnn has learned the united states has determined that iran is using commercial freighters to move missiles. that's based on multiple images that show areas of the ship's decks have been removed, allowing them to dacarry hidden weapons. i will get reaction from david says lienee, who serves on the aforeign affairs committee. first, the new details of michael flynn's cooperation with special counsel robert mueller's team. our senior justice correspondent evan perez is joining us, cnn national legal analyst susan hennessy is with us as well. first of all, evan, what can you tell us? >> wolf, the first time we're hearing from the government just how valuable michael flynn has been to the special counsel's investigation. over 19 interviews the special counsel had with michael flynn and we're getting some new details that were just