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Articles on National security

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The E. Barrett Prettyman Federal Courthouse in Washington, D.C., houses the U.S. Foreign Intelligence Surveillance Court. AP Photo/ Evan Vucci

Section 702 foreign surveillance law lives on, but privacy fight continues

Privacy advocates lost out when Congress reauthorized Section 702 of the Foreign Intelligence Surveillance Act without major reforms. But the renewal fight returns in 2 years.
Solar engineering is designed to reflect some of the Sun’s ray back into space. John Crouch/Moment via Getty Imgaes

Climate engineering carries serious national security risks − countries facing extreme heat may try it anyway, and the world needs to be prepared

The big question: Would climate engineering like sending reflective particles into the stratosphere or brightening clouds help reduce the national security risks of climate change or make them worse?

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