If you want someone to blame for Banksy's stunt of shredding "Girl With Balloon" after selling it for $1.4 million at auction, your prime suspect currently has a major retrospective at the Tokyo National Museum.
Skepticism of the British graffiti artist's aesthetic value may not be cured by seeing the two-part "Marcel Duchamp and Japanese Art" exhibition, but the show is a comprehensive exploration of how and why modern art broke away from painting and the idea of craftsmanship.
One person's terrorist is another's freedom fighter, and Duchamp's revolutionary attack, 100 years ago, on the assumptions of what constitutes art and beauty, still radically divides people.