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British startup bio-bean is partnering with Shell and Argent Energy to power some of London's public buses with a biofuel made from coffee grounds.

Tesla CEO Elon Musk has unveiled a new electric semi-truck that can go up to 500 miles with a full load at highway speeds before charging.

"It's always been a long game." Angelo Carusone, the president of the anti-Fox group Media Matters for America, tells Brian Stelter why he is encouraging advertisers to boycott Sean Hannity's Fox show. (Fox says the campaign is an intimidation tactic.) Carusone also responds to Hannity's personal insults.

Comedian Anthony Atamaniuk studied Trump's rallies and practiced his pitch-perfect impersonation before becoming the host of "The President Show." Now he takes Brian Stelter behind the scenes and describes what he has learned by playing the president.

Billionaire Ray Dalio tells Fareed how the U.S. is becoming a two-tier economy, a problem that will only get worse.

The three biggest newspapers in Alabama have a message for their readers: "Stand for Decency, Reject Roy Moore." The Alabama Media Group stripped the editorial across its Sunday front pages. The unusual step comes 10 days after misconduct allegations first surfaced against Moore, the Republican nominee for the state's Senate seat.

"Saturday Night Live" took aim at Sen. Al Franken during its Weekend Update skit, meanwhile host Chance the Rapper belted out a few musical numbers including "Come Back Barack."

Zimbabwe's former FInance Minister Tendai Biti tells RIchard Quest that Mugabe's time is up, the military is in charge, and if he cares about Zimbabwe, Mugabe needs to resign.

Comedian Hari Kondabolu is taking on Apu, the Indian convenience store owner on "The Simpsons." He explains how the character has reinforced negative stereotypes about Indians for decades.

210,000 gallons of oil has leaked from the Keystone Pipeline in South Dakota, according to the pipeline's operator TransCanada.

Saudi officials expect Aramco to be valued at $2 trillion - that's the size of Apple, Facebook and Microsoft combined.

Comcast and Verizon have approached 21st Century Fox about acquiring parts of the company, sources familiar with the talks told CNN.

Researchers at Harvard's Wyss Institute have developed a microrobot that can fly, swim and jump off the surface of water.

Boston Dynamics released a video of its humanoid robot Atlas hopping and doing backflips. It's the second time this week the company has teased an updated robot.

President Robert Mugabe's Fast Track Land Reform crippled Zimbabwe's economy, which was once considered the bread basket of Africa.

Ahmed Abdulkarim Alkholifey, the head of Saudi Arabia's central bank, says an anti-corruption campaign that has ensnared some of the kingdom's top business leaders will help provide "stability" for investors.

Leeann Tweeden, who said she was groped and "forcibly kissed" by Sen. Al Franken, says that our culture is part of the problem, and the first step toward change is for the people doing the abusing coming forward.

Leeann Tweeden has accused Minnesota Sen. Al Franken of unwanted contact during a 2006 USO tour.

House Speaker Paul Ryan announces that the House of Representatives passed a major tax reform legislation along party lines, advancing a key agenda item for President Donald Trump and congressional leaders.

The authors of "Good Night Stories for Rebel Girls", Elena Favilli and Francesca Cavallo talk about why they turned to crowdfunding to raise money for their first book and how they found stories of more rebellious girls for the second volume.