the way down to mississippi, temperatures will feel like they're below freezing. near zero degrees in minneapolis. cold stuff, david. >> rob marciano. rob, thanks to you. overseas tonight, a massive show of force in asia. the u.s. and south korea now conducting simulated war drills tonight, with hundreds of aircraft, including american stealth jets. it comes days after north korea test-fired its most powerful missile yet. yet, north korea tonight saying its those drills involving the u.s. that are now bringing the peninsula, quote, to the brink of nuclear war. there is still much more ahead on "world news tonight" this monday. the american tourist attacked and killed by a shark. the scuba diving trip turning deadly. the dive instructor hurt trying to save her. there's also news tonight about the death of that missing toddler. the suspect in court today. and the multimillion dollar settlement involving a daughter who died after going to the dentist to get her wisdom teeth pulled. there's a lot more news ahead. ♪ if you have moderate to severe plaque psoriasis,... ...isn't it time to let the real you shine through?