>Previous earthquakes have revealed flaws with some skyscrapers. A widely used welding technique was found to rupture during the 1994 Northridge earthquake in L

>Previous earthquakes have revealed flaws with some skyscrapers. A widely used welding technique was found to rupture during the 1994 Northridge earthquake in Los Angeles. (Many buildings in San Francisco and Los Angeles have not been retrofitted.) That statement really boggles the mind. How do you own some of the most valuable property in the world, and not maintain it in the simplest of ways against something that could literally destroy your investment? After 24 years of knowing that your building was in danger?