Once seen as a Cold War relic, Radio Free Europe has become a vital tool in today’s battle against disinformation and authoritarianism, especially since Russia’s invasion of Ukraine. Bill Whitaker reports. Scientists are sounding an alarm that we are living amid the sixth mass extinction, they predict we are just 20 years away from life being altered on Earth again. Scott Pelley reports. Obesity is the second leading cause of preventable death in America after smoking. Lesley Stahl reports on a new medication that helps with weight loss but is wildly expensive and covered by very few insurance companies.

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