Tech Tent

Jeff Bezos's Amazon and Jack Ma's Alibaba report bumper profits, but both online shopping giants face challenges. Rory Cellan-Jones speaks to the BBC's Asia business correspondent Karishma Vaswani about Jack Ma's run-in with Chinese regulators, while BBC technology reporter Jane Wakefield assess the impact of Jeff Bezos's decision to step away from day-to-day running of Amazon. Plus we hear from Eliot Higgins, founder of online investigators Bellingcat, about how the internet has changed intelligence gathering. And Leo Kelion speaks to social networking pioneer Michael Birch about his plans to relaunch the social network platform Bebo.(Photo: Amazon’s Jeff Bezos and Alibaba’s Jack Ma, Credit: EPA/ Reuters)