The ongoing debate over whether or not children should be vaccinated has increased in volume and urgency this winter, in the wake of a nationwide measles outbreak that has now topped 100 cases. While we must wait 492 more days to read former Laguna Beach star Kristin Cavallari's thoughts on the matter in her debut book, Balancing on Heels, we can look at what she's said on the topic in the past to guide our discussion today.