This year, regulators have focused on the role high-frequency traders played in the May 6 "flash crash, " when some of the fast-moving firms stepped away from the market during the height of the turmoil.

WSJ: In Fast-Trading Trial, Protection for Goldman Sachs Secrets

Five minutes after them it is the turn of the unfortunate team charged with measuring the height of the flames and mapping the fireline in order to calculate how fast it is moving all without inhaling too much smoke as they go.

ECONOMIST: A new experiment is setting the Amazon on fire