olsson did stress the u.s. attorneyance office in washington is working with federal prosecutors around the country focused on january 6. but attorneys from main justice here in d.c. are also assisting. and this new domestic terrorism unit, it will help with more robust investigation and prosecution from various other domestic terror threats. jessica schneider, cnn, washington. now, north korea claims it has successfully tested a hypersonic missile with leader kim jong-un on hand to watch as you can see there. this is the third time the regime has claimed to fire a missile and the third time in the past week. the united states and its allies condemned the launch and it did something unusual. cnn s brian todd explains. reporter: a provocative move by north korea s 38-year-old dictator causing enough of a security concern in the u.s. to halt air traffic. the faa ordering a ground stop for some pilots along america s