The router has 2 DMZs. One for the Customer and one for the roaming customer. This DMZ can be breached almost as easily (At least the comcast ones) as WEP keys. If the user was doing home banking and investment or working from home, information can easily be accessed. Not only that but there is no Metering. A roamer could quite literally take all of your bandwidth. You would call Comcast and complain and they would say "There is nothing wrong on their end, it must be you" and you would be unable to prove otherwise.
You also shouldn't put much faith in the Declaration of Independence either as it was written by a bunch of criminals. Lets also ignore Australia, its an island of criminals. While we are at it, Zebras are born with criminal uniforms on them, lets ignore them too.
Ironman came out originally in 1959 (http://marvel.wikia.com/Iron_Man_Comic_Books) Are they claiming they were first or just the first to do the man in metal suit doing 3 point stance? Because, technically, that was done before in football. Though they were wearing pads. Might be different.
...but they did distribute it...how else would others see it so they can create emails? Or would you prefer a "Public Performance"? These are things the MPAA and RIAA have sued for. If I loaned my CD to a friend or played my CD/DVD in a place where it could be seen by others, per their definition, it would be a public viewing\performance.
So, as this computer had sensitive materials on it, does the teacher get fired for not following security procedures put out by those who do the testing? How about the school administrator who allowed this to happen? If they are going to go over board with the student they should be doing the same for all who were involved on both sides. Seems fair to me.