Threat Detection

Over at the Times, Benedict Carey has a fascinating article on the crucial importance of intuition on the battlefield, where soldiers are often forced to make decisions without knowing why, exactly, they are making them:

The United States military has spent billions on hardware, like signal jamming technology, to detect and destroy what the military calls improvised explosive devices, or I.E.D.'s, the roadside bombs that have proved to be the greatest threat in Iraq and now in Afghanistan, wher