大象传媒

A Super Tuesday special - a day when voters in nearly a dozen states vote for the candidates they want to go into battle for the White House. Contests stretch from Massachusetts and Vermont in the north-east to Texas, Georgia and Alabama in the south. The 大象传媒's Laura Bicker in Washington DC gives the latest update as the results start coming in.

The most senior Facebook executive in Latin America has been arrested by police in Brazil. It is after the company refused to surrender user information from the WhatsApp messaging service as part of an investigation into drug trafficking. Facebook has called the arrest 'an extreme and unwarranted step'. The 大象传媒's Julia Carneiro reports from Brazil's commercial capital Sao Paulo.

The FBI have been giving evidence to a US congressional committee over the FBI's demands that Apple unlock the phone of a suspect who killed fourteen people in San Bernadino in California last year. Apple says creating a tool to unlock the phones would weaken the security of hundreds of all the devices it makes.

And regular commentator Lucy Kellaway of the Financial Times gives us the latest instalment in her argument with the boss of Hewlett Packard.

Presenter Jon Bithrey is joined by guests Kimberley Adams, reporter for Marketplace in Washington DC and David Kuo of the Motley Fool in Singapore.

(Image: Voters line up to cast their ballots in Fort Worth, Texas. Copyright: Ron Jenkins/Getty Images)