In Russia many of Vladimir Putin’s political opponents are dead or in exile. Scott Pelley meets some of those who defied Putin and were forced to flee to the nearby capital of Vilnius, Lithuania.

Few people realize it, but Social Security’s mistakes are your responsibility. It often doesn’t matter if it’s not your fault – you still must pay. Anderson Cooper reports.

The U.S. is conspicuously absent from the international race to explore deep sea mining. Bill Whitaker speaks with former diplomats and military leaders trying to break a Senate logjam, and with others standing firm in their opposition.

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Ep. 27: Knowledge Nuggets with Great Minds CAO Rachel Stack