Update: CNN's Jeanne Moos uncovered the even funnier story behind "Double Trainbow," here. And the original it lovingly parodies, by "foamer" and excitable railfan Mark McDonough, is below. His YouTube channel is a thing of beauty.
Boing Boing editor/partner and tech culture journalist Xeni Jardin hosts and produces Boing Boing's in-flight TV channel on Virgin America airlines (#10 on the dial), and writes about living with breast cancer. Diagnosed in 2011. @xeni on Twitter. email: firstname.lastname@example.org.