In another blow to the Motor City's tarnished image, Detroit pushed past St. Louis, Missouri, to become the most dangerous US city, according to a private research group's controversial analysis, released Sunday, of annual FBI crime statistics. The study drew harsh criticism even before it came out. The American Society of Criminology launched a pre-emptive strike Friday, issuing a statement attacking it as "an irresponsible misuse" of crime data. The 14th annual "City Crime Rankings: Crime in Metropolitan America" was published by CQ Press, a unit of Congressional Quarterly Inc. It is based on the FBI's Sept. 24 crime statistics report. The report looked at 378 US cities with at least 75,000 people based on per-capita rates for homicide, rape, robbery, aggravated assault, burglary and auto theft. Each crime category was considered separately and weighted based on its seriousness, CQ Press said.