As Marines train to deploy to war zones, there is daily discussion about how to detect and disarm the buried roadside bombs that are the No. 1 killer of Marines in Iraq and Afghanistan. Military researchers have found that two groups of personnel are particularly good at spotting anomalies: those with hunting backgrounds, who traipsed through the woods as youths looking to bag a deer or turkey; and those who grew up in tough urban neighborhoods, where it is often important to know what gang controls which block. Personnel who fit neither category, often young men who grew up in the suburbs and developed a liking for video games, do not seem to have the depth perception and peripheral vision of the others, even if their eyesight is 20/20. The odd thing about this is that it reflects the pop culture fears you see in portrayals of crazed rednecks and feral urbanites. one day the casts of The Hills Have Eyes and assault on precinct 13 will unite and destroy the suburbs. I wonder how this maps on to the British army.