Millions in Texas still desperate for water after power crisis, White House says shipments of Covid vaccine delayed due to weather, and study shows pandemics effect on students in marginalized communities. Watch NBC Nightly News With Lester Holt at 6:30 p.m. ET 5:30 p.m. CT (or check your local listings).00:00 Intro02:09 Millions In Texas Desperate For Water After Power Crisis02:28 Firefighters Truck In Water To Battle Massive Inferno02:41 Child Found Dead In Room From Suspected Hypothermia02:57 Texas Power Grid Slowly Recovers From Deep Freeze03:05 Texas Families Desperate For Food And Clean Water03:13 Historic Winter Storm Causes Billions In Damage03:23 Texas Residents Shocked By Skyrocketing Energy Bills04:00 Flooding Threat From Broken Pipes As Texas Thaws04:24 Austin Mayor: Two-Thirds Of City Without Water05:22 Austin Mayor: Extreme Weather Hitting More Often06:02 Austin Mayor Demands Answers On Power Grid Failure06:53 Ted Cruz Now Says Cancun Trip 'Obviously A Mistake' 08:32 Storms Delay Shipment Of 6 Million Vaccine Doses09:40 Pfizer Wants To Store Vaccine At Higher Temperatures09:52 New Covid Cases Decline As U.S. Nears 500,000 Deaths10:42 Women Accused Of Posing As 'Grannies' To Get Vaccine11:03 Florida's Red Counties Given More Vaccine Per Capita12:16 Biden Tours Pfizer Plant, New Mega-Sites Announced12:32 Biden Administration Rolls Back Trump Asylum Policy13:07 'America Is Back': Biden's First Speech On World Stage13:38 Biden Administration Open To Nuclear Talks With Iran14:05 U.S. Officially Rejoins Paris Climate Agreement14:37 Israel Leads The World In Covid Vaccinations16:23 Pandemic Stress Hits Minority Students Especially Hard18:57 First Mars Images From NASA's Perseverance Rover