The strip's circulation in the United States was erratic, in part because of the occasional nude scenes, which were much less acceptable in the US than elsewhere, resulting in a censored version of the strip being circulated. (Modesty occasionally used a tactic that she called the "Nailer," in which she appeared topless, distracting the bad guys long enough to give Willie or herself a chance to incapacitate them.) An example of this censorship appears in the introduction to the 2007 Titan Books reprint volume "Death Trap", which illustrated two segments of the story arc, "The Junk Men" that were censored by the "Detroit Free Press" when it published the strip in 1977; in both cases a screen was drawn over scantily clad images of Willie and Modesty. Reportedly, O'Donnell did not approve of the changes, although they were made by the artist, Romero.