photo manip ethics

the story was talking about how manipulation of pictures or anything can affect peoples life even if it had happened before or after the manip. manipulating photos can determine the future, past, present and can alter a lot of peoples lives. for instance if you commit a crime and you have access to get the photo that proves you were there committing the crime, and you know how to use photoshop you could alter yourself out of there and blame some one else so it looks like they didn't. but thats not right. follow the rules of photo-manipulation!