GPS vs. the noble sextant

[J.Tallman]

Hello All,   Claude wrote:   "The advent of satellite technology has made all this very much a historical question.  Is it true that US Naval midshipmen no longer study use of the sextant?  You can only hope that the GPS or radio in your lifeboat has good batteries."   I certainly hope that this is not true...I don't know for sure.   I heard a story on the radio this morning about the proposed US missile defense system, and the official reaction of China to such a system.  Not that I am paranoid at all, but they were quoted as saying, among other scary things, that they would attack US satellites - wouldn't that include the GPS system?   Jim Tallman     Sr. Designer FX Studios