Most people have heard of the "six degrees of separation" theory -- the idea that everyone in the world is separated from everyone else by six links.
But is the notion just a pop culture myth or a fact of life?
See how "Primetime's" experiment played out on "Basic Instincts: The Human Chain" Wednesday, Dec. 13 at 10 p.m. ET.
"Primetime" resolved to find out by conducting a groundbreaking social experiment. With the help of Columbia University professor Duncan Watts, "Primetime"...Full Story