Sacha Baron Cohen says he's just doing silly voices. But the British comedian behind Ali G, Borat and Bruno has invented his own brand of undercover comedy in the hopes of making viewers both laugh and think. cbsn.ws/3VUgCyR

The world's helium supply is facing a shortage seven months after Iranian strikes on a Qatari gas facility and the effective closure of the Strait of Hormuz. A range of industries are feeling the impact with no end to the war in sight. cbsn.ws/4elQSSj

New 60 Minutes contributor Sebastian Junger just returned from Ukraine, where he witnessed the country's ongoing fight for survival almost five years after Russia's unprovoked invasion.

In Sacha Baron Cohen’s new movie, “Ali G: Who Iz I?” he plays three characters who interact with real people. The scale of the challenge was unlike anything he had undertaken before. “We had to have, you know, prosthetic teams working on this for years. We had animatronic teams. There are hundreds and hundreds of things that can go wrong, and each of them has to go right,” he says. cbsn.ws/4sb9I4l

Sacha Baron Cohen says the inspiration behind his character in “Talladega Nights” was his French clown teacher. cbsn.ws/4hUlqNo

In “Bruno,” Sacha Baron Cohen wanted his gay rom-com to end with a kiss, but with a twist that left the crowd angry. cbsn.ws/4sgHpBI

Does Sacha Baron Cohen ever feel conflicted or guilty about baiting someone into making a complete fool of themselves on screen? cbsn.ws/4yvdQxH

Actor Sacha Baron Cohen plays Borat, a Kazakh reporter in the 2006 smash hit film “Borat: Cultural Learnings of America for Make Benefit Glorious Nation of Kazakhstan.” “[He’s] a funny character,” says Baron Cohen. “He also shows the kindness of people as well, who are so nice to him, but also can expose, you know, the layer of hate and bigotry below the surface that people normally wouldn't go on air and show.” cbsn.ws/4Bwn3sr

Actor Sacha Baron Cohen says he learned everything from Philippe Gaulier, a world-renowned clown. “His idea of clown was the stupidest creature that can ever be on stage. He used to say, ‘More stupid than this, and you die,' says Baron Cohen. cbsn.ws/4yWn0nV

“I realized I loved making people laugh, but I also really liked making them cry — onstage,” says Sacha Baron Cohen. When he told his parents he planned to become an actor, he says they thought it was a ridiculous idea and that success seemed impossible. cbsn.ws/47s2PCg

After more than 20 years in remission, Ali G is back. 60 Minutes’ Ariel Levy met Baron Cohen’s character in London. cbsn.ws/4ytYFoi

Sacha Baron Cohen says the idea behind Ali G was simple: Put “the world expert” in a room with “the biggest idiot in the world.” cbsn.ws/4yXByU8

When an executive threatened to fire Sacha Baron Cohen after he played a prototype of his iconic character Ali G in a sketch, he thought, “I knew I was onto something.” cbsn.ws/4yYAaRn

The Qataris have said it would take at least three years to get Ras Laffan, the world’s largest facility for natural gas and its byproduct helium, in full operation. 60 Minutes' requests for more information went unanswered, so we turned to satellite images to try to assess the extent of the damage at the facility. cbsn.ws/4BcReof

The price of helium has tripled since March, and it could go even higher, says Rich Brooke, a former executive at Air Liquide and current industry consultant. cbsn.ws/4zITAtu

Helium, required for semiconductor production, is now in short supply as the war with Iran drags on. How long can the U.S. help meet growing demand from around the world? Rich Brooke, a former executive at Air Liquide, weighs in. cbsn.ws/4BcR8Np

With helium in short supply, 60 Minutes learned that bringing new sources to market can take years. “It's not easy to find. It's not easy to build. The logistics are hard, right? You've got to keep something that's 452 degrees below zero cold. And it's perishable,” says Cliff Cain, president of Pulsar Helium Inc. cbsn.ws/4ypM5X5

“If we do not have helium, we'll have to shut down,” says Surya Iyer, president and COO of Polar Semiconductors. The semiconductor industry consumes one-fifth of the world’s helium to make chips used in everything from smartphones to pacemakers. Now, that helium is in short supply. cbsn.ws/4k2lvzM

At the University of Chicago, lab director Joe Sachleben says helium shortages could force researchers to decide which machines to sacrifice. This could impact research into breast cancer drugs, immunotherapies and treatments for Alzheimer’s. cbsn.ws/481om4L

Helium is essential for MRI machines and the scientific instruments needed to research cancer drugs, vaccines and immunotherapies. Now, the Iran war is threatening its global supply. cbsn.ws/4isD3nx