What are the environmental implications of the so-called "driverless car" that Google and others are working on right now? -- April Jackman, Barren, Mass. Just a decade ago, few would have dreamed we'd live to see driverless cars whisking people around. But things are changing fast, and analysts now think they will be common by 2020 and account for the majority of cars on the road by 2040.
Kourtney Kardashian flashes nipples in silk slip at Paris Fashion Week