[Theoria]

'The first amendment exists precisely to protect political speech that someone may deem to be offensive. Otherwise, it wouldn't be necessary.'

Political speech? I thought for all 'speech'? And, why does political posters get a pass on the median of the post office? I should be able to put anything I want there if that is the outcome of free speech.

As for the woman, considering that political prints get a pass, she should have simply put a sign up detailing her concerns for facial hair with the others.

[chrisser]

Political speech? I thought for all 'speech'?

While all speech is protected, to a degree, it is a continuum. Political speech is the closest to absolute, along with speech critical of the government (which I would call poltical, but others differentiate).

Other types of speech (commercial, defamatory, obscene, etc.) have less protection, and, in some cases, very little protection.