12 to KNOW Morning Brief for Tuesday, July 21, 2026.

SOURCES:  CBS News — U.S. carries out 10th night of strikes on Iran after 3 U.S. troops killed  https://www.cbsnews.com/live-updates/iran-war-trump-us-troops-killed-wounded-jordan-base/  CNN — July 20, 2026 — US completes more strikes against Iran after Trump warning to Tehran  https://www.cnn.com/2026/07/20/world/live-news/iran-war-trump  NPR — Andy Burnham succeeds Keir Starmer as the U.K.'s 7th prime minister in 10 years  https://www.npr.org/2026/07/19/nx-s1-5895993/andy-burnham-prime-minister-keir-starmer  White House — Fact Sheet: President Donald J. Trump Imposes Additional Tariffs on Canada  https://www.whitehouse.gov/fact-sheets/2026/07/fact-sheet-president-donald-j-trump-imposes-additional-tariffs-on-canada/  Axios — Trump to impose 50% tariffs on Canadian goods, escalating trade war  https://www.axios.com/2026/07/20/trump-tariffs-canada-trade-war  TechCrunch — Judge pauses $110B Paramount-Warner Bros. merger  https://techcrunch.com/2026/07/20/judge-pauses-110b-paramount-warner-bros-merger/  NPR — Court ruling freezes Paramount-Warner Bros. merger for now  https://www.npr.org/2026/07/20/nx-s1-5900888/paramount-wbd-tro-restraining-lawsuit  Fox News — Ukraine unleashes more than 400 drones near Moscow in one of war's biggest attacks  https://www.foxnews.com/world/ukraine-unleashes-more-than-400-drones-near-moscow-one-wars-biggest-attacks  NPR — World News and International Headlines  https://www.npr.org/sections/world/  Al Jazeera — What does Khalil al-Hayya's election win mean for Gaza?  https://www.aljazeera.com/news/2026/7/20/what-does-khalil-al-hayyas-election-win-mean-for-gaza?traffic_source=rss  Bloomberg — Stock Market Today: Dow, S&P Live Updates for July 21  https://www.bloomberg.com/news/articles/2026-07-20/stock-market-today-dow-s-p-live-updates  CNBC — Stock market news for July 20, 2026  https://www.cnbc.com/2026/07/19/stock-market-today-live-updates.html  TheStreet — Stock Market Today: Iran worries derail Nasdaq, S&P 500  https://www.thestreet.com/stock-market-today/stock-market-today-dow-jones-sp-500-nasdaq-updates-july-20-2026  GMA Network — FIFA World Cup: Knockout stage results (final), bracket, and more (July 19, 2026)  https://www.gmanetwork.com/news/sports/football/995451/fifa-world-cup-knockout-stage-results-final-bracket-and-more-july-19-2026/story/  Sunny Skyz — This Grandpa Has Spent 8 Years Cuddling a Hospital's Tiniest Fighters Every Week  https://www.sunnyskyz.com/good-news/6259/This-Grandpa-Has-Spent-8-Years-Cuddling-a-Hospital-039-s-Tiniest-Fighters-Every-Week  WTVR — This 73-year-old is not a doctor or a nurse — but he shows up every week for the tiniest fighters  https://www.wtvr.com/news/local-news/richmond/dave-whitlow-volunteer-cuddler-comforts-nicu-babies-childrens-hospital-of-richmond-april-30-2026  Good News Network — Good News, Inspiring, Positive Stories  https://www.goodnewsnetwork.org/— 12 to KNOW Automation