In 2013, the world learned that the NSA and its UK equivalent, GCHQ, routinely spied on the German government. Amid the outrage, artists Mathias Jud and Christoph Wachter thought: Well, if they're listening ... let's talk to them. With antennas mounted on the roof of the Swiss Embassy in Berlin's government district, they set up an open network that let the world send messages to US and UK spies listening nearby. It's one of three bold, often funny, and frankly subversive works detailed in this talk, which highlights the world's growing discontent with surveillance and closed networks.

Mathias Jud: Art that lets you talk back to NSA spies

Art that lets you talk back to NSA spies

Art installation 'Can You Hear Me?' turns spying tools into a platform for global free speech, directly challenging surveillance.

15,000+ messages sent via artists' network in Berlin's gov district, proving public spaces can reclaim digital communication freedom.

'Hotel Gelem' project transforms the perception of Roma settlements by inviting outsiders to live with Roma families, fostering unity.