Are we facing a future of violence and chaos? In the programme's contribution to
Science Week, Panorama looks at the alarming prophecies of post-apocalyptic films such as Mad Max and Blade Runner, and asks whether western governments are simply accepting worst-case scenarios, rather than taking action to avoid them.
See today's choices.

(Note: because Panorama is a topical programme and likely to react to events in the news, the above programme is liable to change.)