In other cases, children often imitate what they see in television, music, and video games. A recent study found that a group of young children who watched an episode of "The Mighty Morphin Power Rangers" performed seven times more aggressive acts in a two minute play period than did a control group According to Dr. Jane Ledingham for The National Clearinghouse on Family Violence, "Those children who see TV characters getting what they want by hitting are more likely to strike out themselves in imitation." Even when there is a worthy reason for acting violently, such as in self defense or even law enforcement, it doesn't make children less likely to mimic it. A representative for the American Academy of Pediatrics stated, "[T]here is a cause-and-effect relationship between media violence and real-life violence.
This link is undeniable and uncontestable." This is easily proven after the tragedy at Columbine High School. The two gunmen, Dylan Klebold and Eric Harris, spent a large portion of their time playing violent computer games such as "Doom" and "Quake." They also loved Marilyn Manson, a satanic singer who preaches hate and murder. In another incident, eight year old Aaron Auffhammer was injured on the school playground as a result of a classmate's attempt to copy a wrestling maneuver commonly seen on television known as "The Tombstone." Another study was conducted where preschoolers were shown a video of a man hitting a doll. Afterwards, the kids who saw the tape were more likely to mirror the violence on a similar doll. Hundreds of other studies have been carried out in the past decade, all which report similar findings. Like the great Jim Henson, the Muppets creator, once said, "Television is basically teaching whether you want it to or not."