It was later determined that one of the three legs had broken under the strain, rendering the tripod of support unstable. Its important to note that Towers Two and Three survived this and many other Atlantic storms over the next few years, although they were evacuated a number of times to ensure that no repeat tragedy ocurred. Eventually currents weakened the foundations and they were decommissioned. (We'd like to note here that the TT's weakness was their supporting legs, which our design avoids entirely).