 Cities of Illinois are not included in this ranking, due to a disparity in the way Illinois State police and the FBI report rape cases.Other cities may be excluded because of lack of some data.In October 2007 the American Society of Criminology, the U.S. Conference of Mayors, and the Federal Bureau of Investigation asked the publisher to reconsider promotion of the book – specifically, "their inaccurate and inflammatory press release labeling cities as 'safest' and 'most dangerous'" – because the rankings are "baseless and damaging."