The Chicago Tribune reveals that there appear to be many more members of Mohamed Atta’s Hamburg cell than previously reported. While many members of the cell died in the attacks or fled Germany just prior to 9/11, up to a dozen suspected of belonging to the Hamburg cell stayed behind, apparently hoping to avoid government scrutiny. Many of their names have not yet been revealed. In some cases, investigators still do not know the names. For instance, phone records show that someone using the alias Karl Herweg was in close communication with the Hamburg cell and Zacarias Moussaoui, but Herweg’s real identity is not known. [Chicago Tribune, 2/25/2003]