The history of Japan in the last 100 years shows the immense value of building for the worst prospect. The increase in cost is small and the benefits immense. For a recent example compare what happened in Haiti and Chile a few years ago. Earthquakes and Tsunamis have a long record in the region, and pose a far greater real threat than paranoid fantasies about Iran.
Key U.S. House Democrat cites troublesome issues in Iran nuclear deal (Reuters)
from the article: State Comptroller: Israel must stop ignoring earthquake warnings