Going into battle with the paparazzi

New York artist Adam Harvey is working with surveillance, fashion and privacy, with a view to keeping our lives more private.

He tells BBC's Click why he invented an anti-paparazzi device, which over-exposes the photographer's images by firing a bright light back at them when they take a picture.

Watch more clips on the Click website. If you are in the UK you can watch the whole programme on BBC iPlayer.