This week’s episode of The Guardian’s Power of Privacy video series asks whether we should turn the privacy debate on its head and – timely, this – open everything up rather than shutting it down.

We go to Japan, to meet the people who created a radiation detector in the aftermath of the Fukushima nuclear accident completely from open source materials. The ability to innovate quickly means they were able to iterate seven times to perfect the original model in less than 18 months.

For business, this is extraordinary.

But it means changing how you view data ownership.

Watch it here, and check out the other episodes in the series here.