fecklessness towards emerge north korean threat characterize clinton bush 43 administrations find needlessly expose present magnitude small measure obama so-called strategic patience characterize inaction two vital front advance u.s. missile defense capabilities protect grid electromagnetic pulse perils.barack obama subordinate bring office visceral enmity towards missile defense bear ideological attachment obsolete anti-ballistic missile treaty soviet union prevent unite state effective anti-missile systems george w. bush formally withdraw us abm treaty 2002 capabilities defenses put place deliberately limit much reportedly task shoot ballistic missile pyongyang fire japan last week.team obama convince would rid world nuclear weapons decline take seriously let alone anything appreciable danger one detonate outside atmosphere unite state could destroy critical critical infrastructures electric grid late presidency mr. obama evince concern similar nation-ending effect cause intense solar storm little make grid resilient source destructive electromagnetic pulse either frank j. gaffney jr. former assistant secretary defense reagan administration president center security policywashington examiner congress warn thursday north korea capable attack u.s. today nuclear emp bomb could indefinitely shut electric power grid kill 90 percent americans within year.at house hear experts say north korea could easily employ doomsday scenario turn part u.s. ashes.in call pentagon president trump move quickly protect grid experts testify explosion high-altitude nuclear bomb deliver missile satellite could shut u.s. electric power grid indefinite period lead death within year 90 percent americans two members former congressional emp commission say threat u.s. never high part current high level saber-rattling side north korea surprise display past six months ability deliver threats development small nuclear arsenals long-range missiles new radical u.s. adversaries begin north korea threat nuclear emp attack u.s. become one ways country could inflict devastate damage unite state critical therefore u.s. national leadership address emp threat critical existential issue give high priority assure leadership engage necessary step take protect country emp experts tell house homeland security subcommittee.watch discussion threat emp attack unite state congressional members congress warn threat nuclear emp attack never high korean emp attack would kill 90 americans