Here are two news articles, released almost simultaneously on CNN.
Regarding the first clip, it actually kind of irritates me - there are thousands, upon thousands of teachers in the world, and you end up with a couple of idiots who tarnish the entire profession. The worst part about it - there are teachers who have actually dedicated their lives to the profession, gone above and beyond their duties, been heroes, motivators, etc - and these teachers are long forgotten. Then enter the Mary Kay Letourneau's (sp?) of the world, who will forever remain famous (and who profit from their fame) for tainting a profession...
But I guess the same is true in every profession. Unfortunately teachers, like doctors, are under the microscope more than the average professional.