shuttle bus stop when the suspect approached and stabbed him in the chest. witnesses describe the attack as random and unprovoked. k north korea confirms this morning it tested a medium to long range missile on sunday. kim jong-un watched the launch from an observation booth. it was the nation s second missile test in just a week. north korea s state news agency says the missile met all technical requirements needed to be mass produced for military deployment. analysis by south korea says it cannot ply enough to reach guam. nikki haley is overseas on her first trip as ambassador to the u.n. craig melvin caught up with her for an exclusive interview. the america s first policy came up. what did she tell you? reporter: well, you know,