The early science of hallucinogens in the 1950s and '60s was "kind of a Wild West free-for-all." For more info on the science of spiders and drugs, visit www.drpeterwitt.com.

Every so often, Congress holds a hearing on the perils of pop culture. The "peril" has evolved from comic books, to rock and hip hop music, to violence in video games, but the proceedings follow a script.

Why Pulitzer Prize-winning novelist Junot Díaz says playing Dungeons and Dragons was a revolution.

How do some companies regain public trust after something goes seriously wrong, while others fail? A look at how Tylenol responded after someone spiked its pills with poison in the 1980s sheds some light.