Government code-breakers are working on deciphering a message that has remained a secret for 70 years.
It was found on the remains of a carrier pigeon that was discovered in a chimney, in Surrey, having been there for decades.
It is thought the contents of the note, once decoded, could provide fresh information from World War II.
Schneier’s blog (linked below) also lists additional articles covering the discovery.
Intriguing: WWII carrier pigeon crypto-message discovered