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| Good morning. It’s Tuesday, Feb. 24, and if you’re feeling confused after the back-and-forth on suspending TSA PreCheck at airports, this article explains everything. Now let’s catch up.  | President Donald Trump’s top general warned of the risks of attacking Iran. | | | Gen. Dan Caine has also raised concerns about the scale of any Iran campaign and the possibility of U.S. casualties. (Matt McClain/The Washington Post) | - In a meeting with Trump last week: Gen. Dan Caine said an operation in Iran would face challenges, including a depleted munitions stockpile and a lack of support from allies.
- Despite the warnings: The U.S. has rapidly increased its military presence near Iran. The buildup includes more than 150 planes — take a look at these new satellite images.
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 | Trump will deliver his State of the Union address to Congress tonight. | | |
 | Trump’s new global tariffs went into effect overnight. | - Last week: The Supreme Court invalidated most tariffs Trump imposed last year. He is attempting to work around the ruling by introducing import taxes using a different law.
- Is that legal? We asked experts to weigh in here. Several economists said that the new tariffs aren’t legally justified, and one warned that Trump could face another lawsuit.
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 |  | The Coast Guard is investigating a swastika found at a recruit training center. | | |
 | Longevity guru Peter Attia is stepping down as a CBS News contributor. | - Why? The Justice Department released hundreds of emails between Attia and convicted sex offender Jeffrey Epstein, revealing that they had a chummy, personal relationship.
- Other Epstein fallout: Peter Mandelson, the former U.K. ambassador to the U.S. who had ties to Epstein, was arrested yesterday on suspicion of misconduct in public office.
- One more thing: As sordid allegations engulfed Prince Andrew, three generations of royals had very different reactions.
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 | Measles isn’t the only preventable disease that could make a comeback. | - “The canary in the coal mine”: There are more than 900 confirmed cases of measles in the U.S., according to the CDC. That’s a sign of decreasing vaccination rates overall.
- What could come next? Cases of whooping cough, meningitis, polio and these six other preventable diseases could surge if there is further decline in childhood vaccinations.
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 | The blizzard that hit the Eastern U.S. looked amazing from space. | | | An annotated graphic depicting the incredible structure of the storm. (CIRA/CSU/NOAA) | - A “bombogenetic cyclone”: The nor’easter, as powerful as a hurricane, looked like a giant spiral with an eye-like feature and a long, trailing tail — like a fancy comma.
- Snow totals: Parts of the Northeast tallied up to three feet of snow yesterday, with Providence, Rhode Island, reporting 37.9 inches. More snow could be on the way.
Before you go … the world’s biggest fast-food chain had landed in the U.S.: Here’s how it tastes. Eating in tonight? These quick, low-effort meals are staff favorites. One more good read: Your backyard could be a home. Just follow these steps. We want to hear from you: Do you have questions about stories you’ve seen in The 7? Send them here. We’ll find the right person to answer them and share responses in our weekend edition. And finally … take a game break: | |
Jamie Ross and 
