reeling again. we are live in killeen, texas. also, more breaking news overnight and also this morning. tornadoes, hail, flood, blizzard? some snow in april? really destroying a lot in its path. millions of people throughout the country feeling the storm's wrath. our indra petersons is here tracking the hardest hit areas and what is still to come. a lot of news this morning. good morning, everyone. i'm poppy harlow. welcome to "early start." >> i'm christine romans. it is friday, april 4th, 5:00 a.m. on the nose in the east. let's begin with breaking news on the hunt for flight 370. and this, this morning, this friday morning, a potential turning point. the search moving under water now. australian officials who have now taken the lead, by the way, say the subsurface search is under way with the u.s. navy's pinger locator, and they've got other acoustic gear deployed. they are honing in on a 150-mile stretch of the indian ocean. they are trying to detect any transmission from the plane's