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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 Wednesday, April 16, 2025

Report for Wednesday, April 16, 2025

Witkoff says US ‘finally’ got answer on Putin’s demands for peace.

U.S. Plans to Use Tariff Negotiations to Isolate China

Vance says Europe can’t be a ‘permanent security vassal’ of Washington

Witkoff in Apparent Reversal Says Iran Must Halt Nuclear Enrichment

China Orders Boeing Jet Delivery Halt as Trade War Expands

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