The research is contradictory — some scientists claim violent video games, like Grand Theft Auto, have an adverse effect on young people who play them while others see no such evidence. Grand Theft Auto/Rockstar Games hide caption

itoggle caption Grand Theft Auto/Rockstar Games

Residents check an earthquake-damaged house in Sukagawa city on March 11, in the Fukushima prefecture in Japan. A researcher says that after large-scale natural disasters, it's frequently friends and neighbors who are key to survival. Jiji Press/AFP/Getty Images hide caption

itoggle caption Jiji Press/AFP/Getty Images