Ransomware hackers disable key oil pipeline

Has the threat to infrastructure from hackers demanding money been underestimated? Plus, a Facebook moderator tells the Irish Parliament of the toll the work is taking on her mental health. And we chat to an engineer trying to develop affordable autonomous driving tech for Indian cities. Presented by Rory Cellan-Jones, with BBC cybersecurity reporter Joe Tidy. Produced by Jat Gill. (Image: Valve representing an oil pipeline, with cryptocurrency tokens. Credit: Getty Images).