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Good morning. It's Thursday, Feb. 15, and we're covering a sports celebration turned deadly, rising tensions in the Middle East, and much more. First time reading? Sign up here.


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Need To Know

Kansas City Shooting

At least one person was killed and 21 others were wounded after a shooting broke out near Kansas City's Union Station following the conclusion of the Chiefs' celebratory Super Bowl parade. As of this writing, 15 victims had life-threatening injuries, with two in critical condition; eight of those wounded were children.


Officials said the shooting was neither terrorism nor a targeted attack. Gunfire erupted around 2 pm local time after at least two people began arguing near the end of the route where the Chiefs were celebrating Sunday's title win. An estimated 1 million people were in the larger area, with crowds making their way to the train station to leave when the incident occurred. 


Details on what led up to the altercation are still being pieced together; three people were said to have been detained by police. The victim who was fatally shot was said to be Lisa Lopez-Galvan, a local radio DJ. 


More broadly, gun violence in Kansas City has steadily rose in recent years. Last year was the deadliest on record in the city, with 185 homicides, more than 90% of which were firearm-related.


Israel Strikes Hezbollah

Israeli forces launched a series of strikes across parts of neighboring Lebanon yesterday in retaliation for cross-border fire from Hezbollah fighters that killed one Israeli soldier and wounded eight others (including seven civilians). At least three Lebanese civilians and one militant were killed in the strikes. 


Escalating tensions between both sides have stoked fears the current Israel-Hamas war in Gaza may spiral into a broader conflict. Hezbollah, like Hamas, is backed by Iran and designated by the US as a terrorist organization. The group is the dominant political force in Lebanon and claims to have as many as 100,000 fighters (more than double that of Hamas). 


Hezbollah fighters have kept up nearly continuous fire across Israel's northern border since October. Read more about the potential impact of an Israel-Hezbollah war here


In related news, reports suggest the US deployed a "Ginsu" missile—a modified nonexplosive Hellfire missile with six blades, designed to limit civilian casualties—to kill a militia leader in downtown Baghdad last week. 


Lyft's Bot Bump

Lyft shares rose over 60% in after-hours trading Tuesday following the rideshare company's fourth-quarter earnings report that featured a typo in its 2024 forecast. The swing was said to be largely driven after hours by algorithms trained to analyze data and automatically execute the selling or buying of shares without human intervention (read more). 


Lyft's initial earnings report forecast its adjusted earnings margin to increase by 500 basis points, or 5%, in 2024, rather than the correct figure of 50 basis points, or 0.5%. The adjusted earnings margin is a closely watched profit metric that measures the company's adjusted earnings before interest, taxes, depreciation, and amortization (known as EBITDA) as a percentage of its gross bookings. A higher margin means Lyft earns a bigger share of adjusted earnings from the total transaction value invoiced to riders. Lyft, which went public in 2019, is not yet profitable but expects to see positive free cash flow (see 101) this year.   


The company's shares retreated within 30 minutes after a correction was issued, ultimately rising 35% on the (real) better-than-expected results.


Editor's note: In yesterday's digest, we incorrectly stated Homeland Security Secretary Alejandro Mayorkas was the second US cabinet official "to be removed from office" in US history. We intended to say "face removal from office"—conviction by the Senate is required for removal. Thanks to our readers for calling out the error!

In partnership with Timeline

Discovered, A 'Speed Limit' on Healthy-Aging



Restoring cellular energy may be a key to enduring health, concludes a recent publication in Nature Metabolism, a top scientific journal. “Newly energized cells may provide many more years of healthy life to people,” the authors report. Yet as we age, cellular energy production naturally declines like an ever-lower “speed limit,” reducing our prospects for optimal health.


A new way to restore cellular energy and support healthy-aging, Mitopure® is clinically shown to give our cellular energy generators, the mitochondria, new power. When taken daily, Mitopure replaces aging mitochondria and rebuilds new ones, increasing cellular energy. The results? Studies found participants saw muscle strength and endurance increase without any changes to exercise. Increasing the cellular energy within the muscle cells improved their function


Experience these results for yourself: 1440 readers can get 30% off their order of full-sized Mitopure products, while supplies last, with code 30%1440.

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In The Know

Sports, Entertainment, & Culture

In partnership with The Ascent

> Travis Kelce to executive produce "My Dead Friend Zoe," which is the first film to be financed partially using tax credits from 2022’s Inflation Reduction Act (More)

> Iowa’s Caitlin Clark goes for NCAA women’s scoring record tonight against Michigan (8 pm ET, Peacock); Clark is currently 8 points shy of breaking record (More)

> Harvey Weinstein to appeal 2020 rape conviction; Weinstein was sentenced to 23 years in prison following the conviction (More) | Pedro Pascal tapped to star in Marvel's "Fantastic Four" (More)

From our partners: If cash back is king, this card is royalty. Even The Ascent's credit card experts couldn't resist. They applied for it, and it's an absolute slam-dunk if you're looking for a one-card wallet. Big sign-up bonus, up to 5% cash back, no annual fee, and the list goes on.


Science & Technology

> Scientists develop "meat rice," where grains of rice act as scaffolding for cultured meat; high-protein dish can be prepared like traditional rice, may find use in food insecure communities, military deployments, and more (More)

> Researchers discover oldest known cave art in Argentina's Patagonia region, with drawings of humans and animals dating to roughly 8,200 years ago (More)

> Long-term effects of smoking on the immune system persist for up to 15 years after quitting; study finds heightened inflammatory response, dampened cellular response in ex-smokers (More)


Business & Markets

> US stock markets close up (S&P 500 +1.0%, Dow +0.4%, Nasdaq +1.3%), lifted by Uber, Lyft, and Nvidia shares (More) | Bitcoin's market capitalization surpasses $1T for the first time since 2021 (More

> Uber shares rise 15% to record high after company announces first-ever $7B share buyback plan (More) | What is a share buyback? (More) | Tech giant Cisco to lay off 5% of workforce, or roughly 4,250 employees (More)

> Colorado's attorney general sues to block Kroger's proposed $25B acquisition of rival grocer Albertsons (More) | William Post, credited with playing a role in the development of the iconic Pop-Tarts snack, dies at 96 (More)


Politics & World Affairs

> US congressional leaders expected to meet with national security officials today over new classified intelligence reports about Russia's attempt to develop space-based antisatellite nuclear weapons (More)

> Former President Donald Trump to attend hearing on case over alleged hush money payments made during his 2016 campaign (More) | Georgia judge to consider whether to remove Fulton County District Attorney Fani Willis from state's election interference case over conflict of interest (More

> Indonesian Defense Minister Prabowo Subianto, 72, on track to win presidential election in world's third-largest democracy; unofficial results show Subianto with over 58% of the vote, while full official results are expected next month (More



> The End of Robots.txt

The Verge | David Pierce. For decades, a small text file associated with every website—robots.txt—has governed an informal agreement on how bots interact with your content. Over the past year, the emergence of all-consuming AI web crawlers that provide no value in return has fundamentally altered the equation. (Read)


> The Weapons Lab and the Serial Killer

Undark | Sarah Scoles. In 1998, a California physician confessed to killing dozens of terminally ill patients under the guise of end-of-life care—but was released in the absence of corroborating evidence. Out of options, police turned to scientists at a nearby nuclear weapons lab for help. (Read)

In partnership with Timeline

Mitopure: A New Era in Healthy Aging


Maintaining muscle health is key to healthy aging, but as we get older, our muscle integrity naturally declines. In clinical studies testing skeletal muscle, a healthy-aging supplement called Mitopure increased strength and endurance by improving cellular energy. Importantly, improvements were achieved with no change in the participants’ exercise routine.


Jump-start your journey to improve your muscle health today. 1440 readers can get 30% off their order of full-sized Mitopure products, while supplies last, with code 30%1440.

Please support our sponsors!


Scientists strap cameras to a group of polar bears. (w/video)


Comparing 138 US national anthem performances.


How "The Love Boat" transformed the cruise industry.


The greatest medieval map in the world.


Visualizing billionaire winners and losers in 2023.


Seven centuries of beautiful book covers.


China looks to build lunar bases using moon bricks.


The bubonic plague surfaces in Oregon


Clickbait: An English race that takes some real skill-et. 


Historybook: Astronomer Galileo Galilei born (1564); Women's rights activist Susan B. Anthony born (1820); Musician Nat King Cole dies (1965); Soviet-Afghan War ends as all Soviet troops depart Afghanistan (1989); Raquel Welch dies (2023). 

"People don't slip. Time catches up with them."

- Nat King Cole

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