National DNA databanks were initially established to catalogue the identities of violent criminals and sex offenders. However, since the mid-1990s, forensic DNA databanks have expanded in some states and nations to include all people who have been arrested, regardless of whether they've been charged or convicted of a crime. The public is largely unaware of these changes and the advances in biotechnology and forensic DNA science that have made them possible, but we are beginning to realize that the unfettered collection of DNA profiles from innocent citizens has compromised our basic fr.