Can and should anything be done to halt the inexorable rise of the global technology giants such as Amazon, Google and Facebook? Over the past decade we’ve seen these tech titans come to dominate data collection, cloud computing, retail, social media and publishing, but now there is pushback from anti-monopoly lawyers and sceptical politicians. Stephen Sackur speaks to the American lawyer Lina Khan, who is at the forefront of the movement to tame big tech. But whose interest is she serving?

(Photo: Lina Khan appears via videolink on Hardtalk)