Did I miss something?

Since when is power walking an Olympic sport? No seriously. I decided to check out some of our DVRed Olympics yesterday to find that we'd recorded a segment of power walking. My initial reaction was "what the..." because I couldn't really figure out what was going on or why a bunch of toned athletes looked like every mom from my hometown on an average weekday morning. I didn't even believe it until new room mate Annie (Roomie #3, Annie #2?) walked into the living room and said "Oh, Olympic Power Walking!" So yeah, I guess I did miss the official Olympicization (new word?) of walking.