Why can members of the public come to campus at any time and engage in demonstrations and...

Why can members of the public come to campus at any time and engage in demonstrations and speeches? So state law in Texas actually allows members of the public just like our university community to come onto campus and use our common outdoor areas for speech activity. I think that surprises a lot of students. They show up here and they think, who is this random stranger setting up a table talking about a thing

I find upsetting? But that's protected by state law.