Not quite cryptography, but it is SIGINT. http://news.bbc.co.uk/hi/english/uk_politics/newsid_395000/395843.stm First paragraphs (From the BBC): Headline: UK 'monitored Irish phone calls' Subhead: The messages were scanned for key words The UK Government tapped all telephone messages between Britain and Ireland during the past 10 years, it has been alleged. Channel 4 News said a tower in Capenhurst, Cheshire, was used to intercept all telephone signals between Ireland and the UK from 1989 to when it closed down earlier this year. The 13-storey windowless tower used electronic equipment to collect and store all faxes, e-mails, telexes and data communications, the programme said. Their contents were then allegedly scanned for key words and subjects of interests. [...]
