I finally gave in and bought a quadroter. This little guy ran me $60, has an on-board camera for stills and SD video, and every single part of it is easily and cheaply replaceable, so it's a pretty good first quad to learn with. If I like flying it and I get a lot better I might build my own racing quad. None of my videos yet are worth sharing and the weather is looking ugly so I'll try to put up a video later this week.
With the new trailer for The Martian out I was thinking about it and I remembered something that bothered me when I read it last year. Our cast away astronaut endeavors at one point to grow food from potatoes that the crew had in stock for a holiday meal. So I can accept that NASA stocked a number of real potatoes for this one meal for crew moral, but I if NASA did do that I can't imagine them doing it without irradiating the potatoes first. Since the 70's NASA has blasted al