Is medical over-testing causing Americans more harm than good? Recent guidelines issued by the American Cancer Society, plus a campaign called “Choosing Wisely," claim that too much testing can cause physical harm. Plus, a group of high school students is circulating petitions for a ballot measure calling for free college educations for Californians – by taxing the richest people in the Golden State. How much would those gratis degrees cost? That’s next time at one o’clock.