CDR: RE: New OLD cryptograph patent for NSA

My question is this; why would they patent something that is 64 year old technology? This is like the Enigma machine no?! On Wednesday, October 11, Bo Elkjaer Wrote:

Yesterday oct. 10 NSA was granted another patent for a >cryptographic device invented by William Friedman. The >application for the >patent was filed oct. 23 1936 -- 64 years >ago.