Delacroix’s “La Liberte Guidant Le Peuple” (1830) after it was damaged on February 7, 2013 while on view at the Louvre-Lens in northern France. A 28-year-old woman used a permanent marker to scrawl “AE911,” which apparently referred to the conspiracy theory group Architects and Engineers for 9/11 Truth. The woman was immediately apprehended; the painting was restored and placed back on view soon after.