With Russia’s invasion of Ukraine came a new fleet of American sanctions against the oligarchs close to President Vladimir Putin. Cutting these barons of industry off from their billions involves untangling the web of shell companies and legal tricks they use to hide their wealth. Today, we look at the forensic accountants on the frontlines of U.S. sanctions. Plus, a look at Putin’s vast currency reserves and the quiet dread gripping New York City’s Little Ukraine.