Chinese social networking giant Tencent is the first Asian firm worth more than $500bn. Duncan Clark is an expert on the internet and entrepreneurship in China, and tells us how Tencent has grown so big. Also in the programme, there's been a sharp fall in the price of commodities including sugar, down 22% over the past year. Charles Chavi administers the Kasinthula Cane Growers' Association in Malawi, and explains the impact on his organisation's members. The US Justice Department has filed a lawsuit to block the $85bn takeover of Time Warner by AT&T. We get analysis from Shannon Bond, who is media correspondent with the Financial Times in New York. We have a report from The Gambia on the country's attempts to rise up the world tourism rankings. Plus, we hear from Kenya about an audacious bank robbery that saw the perpetrators dig a tunnel to get access to the branch.