Thesis Statement

I came to a topic today in class that I think will be easy to write about and persuade people. I want to write about how the USD campus should be a smoke free area. I think what we did in class today with the newspaper really helped a lot of us! Thats how I choose this topic, I got the idea from one of the articles in my newspaper. It was about how they just passed a smoke free workplace law. I would of never thought of this if I hadnt seen that article. Some thesis' I came up with were.. One one should have to deal with secondhand smoke in a public area. or.. A college campus should be a safe and clean area not poluted with secondhand smoke. Today in speech class we had to bring in five thesis' and I brought ones about my topic for english. We corrected them in class and my speech teacher said a good one would be "One one should deal with second hand smoke."  She said that is a good strong thesis statement. and then after that she said to have my topics like the first one would be secondhand smoke in public areas and so on. but i dont know if thats only how it should be for speech and eglish is different. I was thinking that english would be different and not like that. What is your feedback? or if this is what were going to talk about at the conference thats fine too!