CARDIFF, WALES - NOVEMBER 26: Spectators and mounted police officers take part in shortlisted artist Tania Bruguera's performance Tatlin's Whisper #5 at the National Museum Wales as part of the Artes Mundi 5 exhibition and prize to be awarded on Thursday 29th November at National Museum Cardiff on November 26, 2012 in Cardiff, Wales. (Photo by Ben Pruchnie/Getty Images for Artes Mundi)
