“I had become addicted to shooting, like one becomes addicted to a drug,” said artist Niki de Saint Phalle of her ‘Shooting Pictures’ from the ‘60s, for which she fired a shotgun at surfaces prepared with bags of paint. Maurizio Cattelan’s ‘Sunday,’ a 71’ wall of gold-plated steel panels marked with holes and bullets on view at Gagosian Gallery, argues something similar, but with the U.S. as the speaker. Telling the New York Times in a recent interview that “we are completely immersed in violence every day, and we’ve gotten used to it,” Cattelan hired locals at a New York shooting range to create a bullet-riddled gold and steel wall that towers over gallery visitors, confronting us with our own reflections amid the damage. (On view in Chelsea through June 15th).