Argentina sub: What happens when a submarine vanishes

Argentina sub: What happens when a submarine vanishes
 

A submarine with 44 crew on board remains missing after disappearing off the Argentine coast on 15 November.
In the last reported contact with the ARA San Juan, the sub's captain reported a breakdown relating to a "short circuit" in the sub's batteries.
Why can't subs be detected? Submarines are built to be difficult to find. Their role is often to participate in secret surveillance operations.
Dr Robert Farley, a lecturer at the University of Kentucky who has written on the subject, says that a sub is very hard to trace if resting on the seabed because under such circumstances it... read more

 
22 November 2017 in World News, Views: 44
Source: BBC
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