Would You Eat This 'Radioactive Soup' in the Name of Art?

Just how palatable is maybe-radioactive soup? An installation currently on display at the Frieze London art fair is serving visitors free cups of soup, made with vegetables sourced from the Japanese region affected by the 2011 Fukushima nuclear disaster. According to Hunger, the UNITED BROTHERS, who are represented by the Green Tea Gallery, give guests the choice whether or not to eat the green-tinted liquid. Although all vegetables within have been deemed safe by authorities, the artists ask the pointed question in the piece's title: "Does this soup taste ambivalent?" (Soup drinkers, circle one: y/n/m)