For precision's sake, it should be pointed out that it is explicitly not protected in a lot of cases. This is due to the fact that a lot of people sign papers that they never read when they start at many corporations.

The correct play here, is to get the word out that people need to review every single paper they sign and line out the clauses that allow dismissal for bringing yourself or the company into public disrepute. People have to understand that they shouldn't be just signing away their rights like that.

The ACLU can't protect you if you've signed these kinds of contracts.