Even it was grotesque, the fact could be easy explained because it was a computer bug involved. More exactly, 14 years after the beginning of the Third Millennium, a computer inadvertently allowed the manifestation of the „Y2K bug“ (a problem resulted from the practice of abbreviating a four-digit year to two digits, even this was checked, fixed, and upgraded worldwide in due time on computer systems). Effectively, this time, the records of males born between 1993 and 1997 were mixed up with those of men born a century earlier on the Transport Department’s computers before the information was transferred to the Selective Service System. „We made a mistake, a quite serious selection error,” said PennDOT spokeswoman Jan McKnight. The incident self closed and the Selective Service expressed regrets to the families affected.