Slingshot team
Media playback is unsupported on your device
Video

Rory meets Facebook's Slingshot app team

Facebook recently launched Slingshot - a photo-sharing app that requires the recipient to send back an image of their own before they can view the original picture.

The BBC's technology correspondent Rory Cellan-Jones visited the firm's headquarters in Menlo Park, California, where he met the team behind the new service.

He filmed the video above using Google Glass eyewear.

Go to next video: Google Glass comes to UK