The hoover dam holds back lake mead, which is pretty big, but not as big as Lake Powell (Glen Canyon Dam) or the Lake Roosevelt (Grand Coulee Dam). All three of them generate a considerable amount of power, but I dont think either the Hoover Dam or the Glen canyon dam would be very good terrorist targets, simply because there's not a lot of people around them. If you were to destroy either one, the only casualties would be people on the dam, and maybe boaters near the top of the dam. however, there's really nothing for several hundred miles downstream from either dam, and by the time the water got to any populated areas, it wouldn't do more than soak some people's carpets. It would cost a lot of electricity, but having a power outage is hardly a horrible terrorist attack.
I dont know very much about the Grand Coulee Dam.
I dont know very much about the Grand Coulee Dam.
