Here is an interesting article about an Army study on who is best and worst at spotting roadside IED's. Not surprisingly, soldiers who had grown up hunting were best as they were used to scanning their environment for tiny little hints that something was up. However, they were almost equalled by soldiers who had grown up in bad urban areas who had learned at an early age to constantly scan their surroundings for threats.

The worst at spotting IED were those described as "heavy gamers", soldiers who spent a lot of time playing video games. They had a tendency to only focus on what they could see directly through their windshield. To them the windshield had subconciously become their game screen.

Anyway, I just thought it was kind of interesting...

-Blast