While Iran’s backing of Hamas in Gaza and Hezbollah in Lebanon is widely known, the regime is quietly carrying out a shadow war in the U.S. and Europe, deploying proxy assassins to silence or eliminate critics of the regime. Britain’s head of counter-terrorism policing, Matt Jukes, tells correspondent Lesley Stahl they’re noticing a significant uptick in Iran’s efforts. In the U.S., Stahl meets some of the targets, including former White House National Security Adviser John Bolton and Iranian American activist Masih Alinejad.

Correspondent Bill Whitaker reports from the conservative state of Wyoming and meets with its surprisingly climate-crusading Republican governor, Mark Gordon. Currently in his second term, Gordon has set a goal to make Wyoming not just carbon-neutral but carbon-negative in CO2 emissions. It’s an audacious idea, since Wyoming is the nation’s largest coal-producer by far. Despite heat from climate change deniers in his own party, Gordon tells Whitaker he’s sticking to his goal, and to his “all of the above” approach to energy.

Cecilia Vega profiles international punk rock, pop princess, Alecia Moore - also known as Pink - as she hits 25 years of her successful music-making career. Vega meets Pink at her home in California, stops backstage on her tour and traces her somewhat troubled journey to superstardom.

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