Millions of American children own a gaming system or handheld devices that video games can be played on. Parents think that this is making children more violent and lash out more. This is the reason why people are trying to censor these violent acts in video games. A study on aggressive behavior conducted by Craig Anderson and scientists at Iowa State University said that, “Kids who played more hours of violent video games per week revealed increases in aggressive behavior and violent tendencies, compared to those who played fewer hours a week” (Park). This is the exact reason that parents want to censor violent video games. The problem is that if they were to ban video games there would not be a large selection of video games like there is now. Plus, there is a multitude of good reasons not to censor video games. Also, when it comes to aggression research shows that context is very important and that there is no evidence proving that aggression is linked to video games. Video games build cognitive skills that play a significant role in a variety of careers ranging from engineering and architecture to surgery. To begin with, there is no evidence of aggression being linked to video games. Studies performed by Dr. Christopher J. Ferguson, proved that there is no evidence that links aggression with video games. Ferguson began his research by conducting literature searches of all published studies between 1995 and 2007. These published studies examined violent game playing and either aggression or visuospatial cognition. "The results indicated no relationship between violent game playing and aggression, but did find that violent game playing was associated with higher scores on measures of visuospatial cognition" (Ferguson). This strengthens the fact that violence is not linked to aggression. With so much research not being able to link aggression to video games, censoring video games would be pointless. In addition to this, video ga