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The Cipher Brief curates open source information from around the world that impacts national security. Here’s a look at today’s headlines, broken down by region of the world.

Open Source Report for Thursday, May 1, 2025

Report for Thursday, May 1, 2025

Pentagon warns it’s not prepared for homeland drone attack

Ukraine and U.S. Sign Minerals Deal After Tense Negotiation

16 countries to ask EU for fiscal leeway to spend big on defense

Iran had imperial ambitions in Syria. Secret embassy papers show why it failed

DHS Secretary Noem says CISA needs to return to ‘core mission’

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