it's what you are showing people. what hits and where it hits are equal coefficients in any potential disaster. this is a uniquely vulnerable coastline in different aspects. when is the last time this area saw anything like this? >> september 22, 1989, 29 years ago when hurricane hugo moved into this area, just north of charleston. moved in as a category 4 with winds at 140. this could be a couple miles per hour stronger. came in a different angle. there's the color, the line in purple. it killed 27 people. it didn't just devastate the area, chris. it changed the entire environment. it changed the coastline. the topography. it created over 100,000 homeless americans. the total cost was $9.5 billion. it was the costliest natural disaster in u.s. history.