Fishy said:
i doubt a man that had a career in pornography who wanted to be a teacher would have as much trouble trying to be taken seriously.
Actually Fishy, there were a few stories about male teachers who had done porn or were a stripper, etc. who had lost their jobs and got their appeals rejected as well. However, there could have been a lot more "stories" that luckily for them, didn't become stories when found out. Although I'm not sure why this particular story is more widespread than the other teachers that lost their job.
Basically society's negative views, the school protecting themselves from angry parents, and possibly all the other unfortunate complications with keeping a teacher on with that sort of history caused dismissal. Many kids would continue to disrespect her and make it harder for her to actually teach and lay down the law should they be disrespectful. Although TheValkyries solution could attempt to solve that part (although it would be hard especially when teaching american middle school children), the school would probably still take a lot of heat from some arguably unreasonable parents. It's unfortunate that it seems she didn't have her fellow teachers on her side either, as they were the ones who showed administrators her videos.
"Although (Halas') pornography career has concluded, the ongoing availability of her pornographic materials on the Internet will continue to impede her from being an effective teacher and respected colleague."
If it was solely the pornographic material circulating of her on the internet that they claim warranted her firing (because of the obstacles she would then have to face during her career), then I wonder what it would be like for teachers who had nude pictures of themselves circulating on the internet not necessarily for pornographic intentions. Would they also lose their job should an angry ex or something post nude pictures of them, if they had posed nude for some type of artwork or film, or say their head was very convincingly Photoshopped onto a naked body. Would there then be claims that students would be unable to focus when being taught by that teacher because they have seen pictures of them naked?
In response to the teacher's past affecting their "authority" to teach, I would find it embarrassing if I saw my teacher piss their pants in front of me one day, as I'm sure most of you would, but should they now be barred from teaching because they did something society would deem shameful (but not to the extent of something extreme like murder or etc. that should obviously prevent them their ability to teach students)? I don't think so, and although that isn't exactly an excellent analogy, most of those problems should be tackled through disciplinary actions like how TheValkyries described. They should still have a sense of authority because they are the teacher, regardless of their past (with in reason of course, ie murderers are usually unfit teachers).
Although I agree with chou in the point that it would be fucking hard for a former porn star to maintain control of a classroom full of modern american middle schoolers, probably causing the school a lot of grief.