I'm about half way through Diffie and Landau's new book, Privacy on the Line: The Politics of Wiretapping and Encryption and have found it quite interesting and entertaining. Contents 1. Introduction 2. Cryptography 3. Cryptography and Public Policy 4. National Security 5. Law Enforcement 6. Privacy: Protections and Threats 7. Wiretapping 8. Communications: The Current Scene 9: Cryptography: The Current Scene 10: Conclusion It's 342 pages including a great section of notes. Computer Literacy has it for $22.50. ISBN 0-262-04167-7 mail order: 408-435-0744 ObWoMD: "8. (p. 82) Distinguishing nuclear explosions from other events, such as large lightning bolts or explosions of meteors in the atmosphere, is not easy. The satellite reacts less to the total energy of the blast than to the form of the flash. Nuclear explosions have a characteristic two-humped flash caused by gamma ray induced formation of nitrogen pentoxide (N2O5). The time between humps is called the "bhang metre" and is characteristic of the type of weapon." Eric