Link, Link to Masquerade (via Plastic Bag)
Spence's counterfeit docks proved to be good box office. German planes came over periodically to photograph them, but fighter patrols and antiaircraft kept the intruders at altitudes of thirty thousand feet, and at that height it was virtually impossible for enemy cameras to pick up any remaining flaws. On German prints, the Docks looked authentic. Now and then, Nazi long range artillery on Cape Gris-Nez would even lob a few inaccurate shells at the terminus - and whenever these landed the camouflage crews would create suitable 'fire damage' using sodium flares and mobile smoke generators'
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.