Japan's skyscrapers swaying during an 8.9 quake

Incredible: Japan's skyscrapers swaying during an 8.9 quake
There's no nation better prepared for a quake than Japan. The nation has investedbillions, in fact, in seawalls designed to stymie the power of a tsunami to skyscrapersbuilt to sway instead of snapping or crumbling. Sway they did, looking like trees in a strong wind during Japan's 8.9 magnitude earthquake on Friday.