+1 with what you said Arney.
I realized after watching those video's that the wave is not just made of water. It truly is a "meat grinder". That's a bad way to go. I suppose a rescue and recovery effort boils down to finding whoever is still floating in the muddy mess, figuring out how to drag them to shore, and starting basic first-aid. I guess I might need a long rope in my kit :-)

other Pete