Confrontation Lab News Today

Wired parts of human nature like the survival instinct that leads straight into efforts to identify exactly what happens inside of the mind and the body when split-second decisions mean the difference of life and death. more on that right now from our gary tuchman. >> reporter: he gets ready to make life or death decisions. >> spokane police. police department. hey, talk to me. >> reporter: decisions the in a most unique laboratory. >> hey! let me see. >> reporter: corporal jordan ferguson is on...