Oh. Just got it.
Been puzzled by the difference in media coverage and elite interest in ocean floods vs river floods.
Ocean floods (tsunamis, hurricanes) get lots of panic and lots of media coverage, while river floods go unnoticed. Good example is last year's Nashville flood, which simply didn't happen in the national news.
I just now got it.
Flood plains near oceans are called "beaches" or "resorts" and are occupied by People Who Count.
Flood plains near rivers are called "farms" or "trailer parks" and are occupied by Unpersons.