The UK defence establishment has had such a roasting in the media over the past year or so that it must be seeing Campbells and Collinses under every stone, so ICL’s move to enable the top brass to sleep sounder in their beds at night is a timely one: the company has come up with a Tempest-shielded version of the DRS 300 distributed workstation family, so that by virture of the benefits of shielding and fibre optics, Admiral Byng can send messages to Commodore Bong saying what a bounder that Dale Campbell-Savours is without fear of being electronically overheard; a four terminal system costs UKP25,000.