practicing a mock attack against a north korean missile launch site and they're pushing it closer to the brink of a nuclear war. a senator fears the u.s. is running out of time. >> i would urge the pentagon not to send more dependents to south korea. south korea should be an una unaccompanied tour. it's crazy to send spouses and children to south korea given the provocation, so i want them to stop sending dependents and it's time to start moving american dependents out of south korea. >> joining me now to discuss this as we hear that pretty scary warning there from senator graham, bob baer with us, cnn security analyst. do you agree with senator graham? you talked to military families who for a long time looked forward to this assignment to go to korea, but with this escalating rhetoric and capability, nuclear weapons wise with north korea, it's a very