Are children affected by violence on tv and computer games??

There are a lot of people that think that the main fault for aggressive children are tv, video games and music. But ist this really true?
It's a fact that in our hisotry many massacres happened like Columbine, Virginia Tech (a recent one) and Erfurt (Germany) and always the main fault was given to videogames, tv and music.

On the one hand, I think that the main fault for being violent is the guy himself who imagines he's kind os a super hero or a super villian, having the right to do such rejecting things. It0s his fault that he lets those bad influence get to him, getting this bad behaviour against anyone. Of course mdia is doing a lot of programmes that definitely are too aggressive and could be a bad influence for children, but its more the fault of our society that

1. Doesn't stop this
2. Allows children watchong these programmes
3. Shows our children that being violent is equal to being cool.

But I also must say (after that paragraph against it) a lot of videogames were accuses of bad influence. even there are some games that are simply aggressive, bloody and worse, there are also a lot of games about fantasy, strategy, fun and more. About tv I must say that, all of these programmes like jackass or MTV's Celebrity Deathmatch are kind of funny but shouldn't be taken seriously. Maybe, kids should watch them together with their parents, to reduce the impact, and that a lot of these shows shouldn'r been shown to young children. They souldn't see how some stupid idiots get drunk or eat some disgusting things that I don't want to mention.

In conclusion we can say that thesee few videogames shouldn't be played by people who have psychologic problems by anyone or either shouldn't be played much by anyone, and that some programmes on tv should be broodcasted at nioght ot just watched in company with parents who can control you as well as these tb programmes shouldn't be taken too seriously!