Standard Chartered, Citigroup, and other major international banks processed billions of dollars from a Kremlin-linked fintech that had built its way into the global financial system undetected. This is a live, large-scale case study in how sanctions regimes actually get tested in practice, not on paper, and it's a genuinely strong candidate for a full piece given how directly it sits in the sanctions-evasion territory your EU-China article already touched on.