JR: Can Art Change the World? | TED

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Famed for enormous black‑and‑white portraits that are pasted on surfaces ranging from the Louvre to the US‑Mexico border wall, multimedia artist JR continues to tackle ambitious projects. In this powerfully moving talk, he shares how he made a giant mural on the courtyard floor of a maximum‑security prison – with the help of guards and prisoners alike – and ended up with much more than a compelling image.