hey, janise. >> reporter: good morning. it's a major escalation by north korea and intermediate-range ballistic missile that flew 2,800 miles right over japan triggering warning sirens for millions of people to take cover. this is rare. only twice before have missiles flown over japan usually, they fly higher so the distance is into the air this one went 22 minutes, crashed into the pacific ocean overnight the state department called it reckless and dangerous with, quote, deeply destabilizing implications for the region already the u.s. is talking about appropriate joint response and south korea has announced that in the last couple of hours they conducted, quote, precision bombing drills as a response to this test. >> so the timing is curious. why did north korea decide to launch this high profile launch at this moment >> reporter: well, there is all the usual friction over u.s. joint military exercises with japan and with south korea and north korea's claim that their weapons program is actually defensive. the concern now