This idea is amazing:
http://thinkprogress.org/climate/2014/07/09/3457911/map-oil-train-blast-zone/
http://thinkprogress.org/climate/2014/07/09/3458131/smith-mars-climate-change/
Quite scary, homing bullets:
Cool market for self-driving, bikes: http://motherboard.vice.com/read/chinas-google-is-building-a-driverless-smartbike