I saw a documentary on border controls in afghanistan where they used a pretty ingenious idea. they frisk a guy and check his pulse at the same time. so a guy h

I saw a documentary on border controls in afghanistan where they used a pretty ingenious idea. they frisk a guy and check his pulse at the same time. so a guy holds two fingers to the guys jugular vein, and the other one checks him. any increase in pulse and its an indicator they should keep searching.