if i could travel back in time i would be a National Heroe because i will show the Gouvernment the videos and pictures from 9/11 and other huge disasters around the world like the Tsunami,etc,
Interesting, what makes you think that people would believe you? People would think you are just a hoaxer. If you prevented 9/11 they would definately think you were a hoaxer as you would have video of an event that never happened.
People predict disasters all the time, some of them score hits with their predictions yet these people are marginalised.
So, do you really think you would be a hero?