How 106 People Got Together to Stop a School Shooting — Before It Happened

A threat on a school bus from an alienated young man united dozens of agencies to answer a single question: Is it possible to stop potential mass shooters before they commit a crime?

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Cache of Devices Capable of Crashing Cell Network Is Found Near U.N.

The Secret Service discovered more than 100,000 SIM cards and 300 servers, which could disable cellular towers or be used to conduct surveillance.

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Man Who Shined a Laser at Marine One With Trump Aboard Is Arrested, U.S. Says

Jacob Winkler aimed a laser pointer at the presidential helicopter as it took off from the White House on Saturday, the authorities said. He was charged with a felony.

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Thousands Flock to Phoenix for Charlie Kirk’s Memorial Service

On Saturday a steady stream of people, many who had traveled from other cities, made a pilgrimage to Kirk’s Turning Point USA office and the mortuary where his body lay.

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Arrest in Arizona Before Charlie Kirk Memorial Heightens Security Concerns

The man was posing as a law enforcement officer, the authorities said, and was taken into custody.

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Trump’s State Visit Will be Biggest UK Security Operation Since Coronation

The fatal shooting of Charlie Kirk has intensified consideration about potential threats, experts said. British authorities had already made extensive security plans.

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Grand Juries in D.C. Reject Wave of Charges Under Trump’s Crackdown

The persistent rejections suggest that the grand jurors may have had enough of prosecutors seeking harsh charges in a highly politicized environment.

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What to Know About Secret Service Protection for Former Vice Presidents

The Secret Service usually protects a former vice president for six months after they leave office.

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Trump Cancels Kamala Harris’s Secret Service Protection

The Secret Service usually protects a former vice president for six months after they leave office, but President Joseph R. Biden Jr. had extended Ms. Harris’s protection beyond that.

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Trump Surveys White House on Morning Roof Stroll

White House reporters looked up from the driveway to see a familiar figure in a most unfamiliar location.

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