Hyper Sonic Weapons System News Today

Intercontinental strategic system. its a big moment in the life of the armed forces and in the life of the country. russia has obtained a new type of strategic weapon. all of this coming as the u.s. prepares to come out of the intermediate nuclear forces treaty with russia. nbc news foreign correspondent lucy is in london with more on the significance of this new weapon. what can you tell us? >> i would take this news with a giant grain of salt. the russians have been trying to develop a hyper s...