'How to hide from surveillance'
Is Big Brother watching us? Every day, street cameras monitor our movements and phones give our location and other information about us away.
New York artist Adam Harvey is working with surveillance, fashion and privacy, with a view to using fashion to help keep our lives more private.
He demonstrates how make-up can prevent facial recognition systems from seeing us, how clothes can foil a heat sensor looking for body heat and how a smart holder for your phone can prevent it giving away information about you.
- BBC News