There is no other volume that so clearly and concisely explains every key aspect of the U.S. Constitution. This classic, easy-to-use reference is thoroughly updated with new entries covering the events of recent years including court cases with impact on Constitutional rights. Each of the more than 250 entries, arranged in encyclopedic A-to-Z format, provides accessible insight into the key questions readers have about the U.S. Constitution. All entries are updated with content through the end of 2007.  Highlights in this new edition include: Quick answers to questions as well as in-depth background on the U.S. ConstitutionA new interior design that makes accessing information easy and funHistorical and contemporary photosInternet addresses for quick referenceDetailed appendices, tables, and an index  New entries include:  Kelo v. New London Hamdi v. Rumsfeld Lawrence v. TexasThe Patriot ActSex OffendersTortureGay marriage and civil unions