I could be fired for my bumper sticker

So says NPR:

Did you know you could be fired for not removing a political sticker from your car — or even having a beer after work? Lewis Maltby says it's more than possible — it's happened. His new book, Can They Do That? explores rights in the workplace.

As he tells NPR's Ari Shapiro, "Freedom of speech is protected by the First Amendment — but only where the government is concerned.

"What most Americans generally don't know is that the Constitution doesn't apply to private corporations at all."

Good thing I take the bus to work.