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It’s been a week in which the US president, Donald Trump, was suspended from his social media accounts and the social network Parler was taken offline. On Business Weekly, we explore the role these companies have in society and whether they facilitate free speech and cohesion, as they claim. Plus, the BBC’s Justin Rowlatt speaks to Tesla founder Elon Musk about money, electric cars and populating other planets. And it probably feels like a lifetime ago that any of us went to a cinema to watch a film, popcorn in hand. Will they ever return? Our reporter Vincent Dowd hears from the world's most northerly movie theatre about its struggles during the pandemic. And should you do what you love, or love what you do? We speak to pianist who ditched his passion to become an accountant. Business Weekly is produced by Matthew Davies and presented by Vishala Sri-Pathma.

Scientists, artists and some of the world’s biggest companies are carving up the visual spectrum, and claiming certain colours as their own, so who does have a right to use the colours of the rainbow? We explore the ongoing rift over the worlds “blackest black” Vantablack, which was created by engineering firm Surrey Nanosystems, and can only be used by the artist Anish Kapoor. Contemporary British artist Stuart Semple argues that creativity should not be limited by commercial agreements, while Surrey Nanosystems executive Ben Jensen explains that the material is not suitable for general use. Author Kassia St Clair explores the meaning and history of colour, and we hear how interpretations of colour have changed from Julie Irish, an assistant professor specialising in colour, at the College of Design in Iowa. Note: Surrey NanoSystems has clarified their material Vantablack isn’t toxic, as described by one speaker in this programme, but can be an irritant.(Picture of a colour splash via Getty Images).

Will it last and why have stock markets been shrugging off political developments? A slew of companies have cut off all funding to political parties in the wake of Trump-supporting mobs storming Capitol Hill after the President and other Republican politicians claimed the US election had been stolen. The list of firms who’ve halted funding through their political action committees - or PACs as they’re known - is long. JP Morgan Chase, Citigorup, Facebook, Microsoft, American Express, Morgan Stanley, the chemical company Dow, the hotel chain Marriott and the card company Hallmark which went a step further, admonishing their local senators. Manuela Saragosa speaks to Jason Karaian from the New York Times newspaper who says his paper has run an editorial calling on the country to look again at how corporate America funds the country’s politics. Plus Mohamed El Erian tells her why the share markets were unfazed by all of this.(Picture: US President Donald Trump. Credit: BBC.)