nbc 5 investigates April 29, 2021 5:30 pm NBC 5 Investigates Which Power Plants Left Texans Powerless in February Texas power companies promised to fix problems to prevent more power outages during a winter storm in 2011. But it happened again this year. Wake Up to Something Good 6:46 Drivers clocked on Dallas' Central Expressway hitting triple-digit speeds 0:40 How fast are drivers driving on Dallas' Central Expressway? 5:13 Dallas County DA uses high-tech tools investigating Rashee Rice's Central Expressway crash 7:47 Family and friends create new tech to prevent deadly crashes 0:50 See: Bosch engineers show off their wrong-way driver detection and alert system