dr. phillips is confident he's on to something big.. >> if you can eulaminate mammograms every woman would cheer. >> but we may be able to tell a woman you don't really need one. your probability of having breast cancer is very small. >> it's important to note that this breath test has not been approved yet by the f.d.a. but dr. phillips hopes that will happen soon, when it does, we will all breathe a little easier. >> lapook: correspondent susan spencer. it's just not possible to cover all the complexities of cancer in a single morning. zoe urge you to go to our "sunday morning" website far more information on cancer and the ways we're combating it. with that we go to john dickerson in washington for look what's ahead on "face the nation." good morning, lone. >> dickerson: good to see you. we talk to speaker of the house paul ryan, he's at center stage. we'll talk to two of his critics senator rand paul and senator brand. >> lapook: thank you we'll be watching. next week on "sunday morning." a journey to the happiest nation on earth.

dr. michael phillips who head new jersey.ce have the results? >> certainly. >> it's not quite as sim's it sound. >> what i do for research. all right. >> not exactly fun. >> how much longer? >> it felt like the longest two minutes of my life. that's very strange. although it sound breathtakingly futuristic, dr. phillips says the basic premises is as old as air. >> hippocrates back in ancient greece told his students to smell the patient's breath. >> when someone gets cancer it actually changes their breath? >> the answer to that is definitely yes for breast cancer and lung cancer. >> the test's reliability in screening certain types of cancer is yet to be proof. >> patient number seven. >> dr. ph he's on to something big. meanwhile, it seems time to state the obvious. >> if you can eulaminate mammograms every woman would cheer. >> but we may be able to tell a woman you don't really need one. your probability of having breast cancer is very small. >> it's important to note that this breath test has not been approved yet by the

dr. holly phillips. she's a contributing editor for "prevention" magazine. they crank out tall doctors. >> we don't want to alarm people. but these are important. >> absolutely. it's all about a balance. our bodies do a great job of telling us when something right be wrong. but again, it's a balance. we don't want anyone to become a hypochondriac. >> you are your own best advocate. no one is going to care about your health as much as you will. >> we have to listen to our bodies. >> handwriting that's getting smaller. >> handwriting tells us about our health because it stays really consistent throughout life. whey mean is most of us develop our signature, our style of handwriting, really early, between the ages of 10 and 14. and we keep it for life. if you notice a change in your handwriting, it means something. if your letters are becoming smaller, see them getting tighter or if there's a different space between words as you write them, you could be developing a tremor, which is an early sign of parkinson's disease. not something to ignore. >> let's move to

dr. murray on campus, helped with the petitions, campus reform.org correspondent phillip hoxley.im. tell us about the turnout the night of the event? >> well, we invited him to talk about coming apart, which is a book we thought would describe the 2012 election. but there were hundreds of people lined up to see the lecture including the couple hundred protesters but hundreds of students we had to turn away there simply wasn't enough space in the lecture hall. steve: how many of the people in attendance wanted to actually listen to him, and how many people wanted to stand you, hold a sign, yell or turn their back. >> there were a lot of protesters, about half and half. but not all the protesters wanted to shut down the event. there were several that wanted to protest, say their peace and sit down and participate. steve: okay. so your organization is to the right of center with american enterprise institute. you asked the moderator, who is to the left of center professor, to be the moderator. at what point did you realize, wait this is getting ugly, we've got to get out of here? >>