----- Original Message ----- From: <anthony.appleyard@um*.ac*.uk*> To > A few times that sort of thing may be necessary, when sport divers > get into a naval or shipping area and need to be got out; or in war > time underwater fights may happen between opposing sides' > frogmen. > > One indicator that has happened in the past and has caused > security scares, that underwater security in a naval base had got > slack, has been a sport diver, with no combat training and a noisy > bubbly aqualung, signing his name on the underside of a warship > and getting away afterwards. A well placed concussion grenade is the best solution to attack swimmers. If you're worried about a swimmer sneaking up on a ship, going active on an ASW SONAR from time to time puts the challenge back into pranks. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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