Jenny Holzer June 1 - July 28th, 2012 Spruth Magers London The large spray paint canvases on view at the gallery are the result of collaborations with New York graffiti artists Lady Pink and A-One, whose haunting images are supplemented with Holzer’s provocative statements. In I AM NOT FREE BECAUSE I CAN BE EXPLODED ANYTIME (1983-84), Holzer’s characteristically…