Growing cyber threat to US infrastructure: spy chief

The United States faces a mounting danger from cyber attacks on its infrastructure while digital espionage threatens to undercut the military's technological edge, the intelligence chief said Tuesday.

How to assess the carbon footprint of a war

We know that war is bad for the environment, with toxic chemicals left polluting the soil and water for decades after fighting ceases. Much less obvious are the carbon emissions from armed conflicts and their long-term impacts ...

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