Feffman,
My father was a foreman for M&K Construction and all through my high school years and later I worked on some big dam jobs, so I am well aware of the internal workings of many dams. There are galleys in Shasta Dam that even the tour guides and the so called security people over here don't know about. Only a few people know all of the galleys and inspection places in major dams such as Hoover and others. They could not haul enough explosives on top of Shasta Dam to do anything but maybe collapse the roadway above the spillway. To actually cause the dam to fail they would have to be placed at strategic points deep inside. The real weak point of most dams is the power houses. They can be taken out with shoulder fired rockets from long distances. But terrorists are more interested in mass casualties than actual targets that are of military use.
Ron
