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An encryption algorithm created by the NSA (National Security Agency) which encrypts 64-bit blocks of data with an 80-bit key. It is used in the Clipper chip, a VLSI device with an ARM processor core, which is intended to perform cryptographic operations while allowing the security agencies listen in.
There are (apparently) two agencies, both of whom have to agree that there is a valid reason to decode a message. Don't laugh, they are serious.
any of approximately 7,000 species of beetles (insect order Coleoptera) named for the clicking noise made when seized by a predator. Most click beetles range between 2.5 and 18 mm (less than 34 inch) in length and are brown or black in colour with either little or no ornamentation. However, some tropical species are brightly coloured or luminescent. Click beetles have elongated bodies with parallel sides and bluntly rounded ends