The CDC says it wants to contact all 132 passengers that were on the same flight as the Texas nurse who has contracted Ebola. That coupled with more screenings at airports including O’Hare may have some people wondering if it’s more risky now to fly. Well you may be surprised to learn that airplanes don’t spread disease as much as you think. Wired Associate Editor Alex Davies recently laid out the reasons why that’s the case. He joins us to talk about his findings. Photo: Flickr/lkarasawa