Today 2 Sep , 2005.
I came across article in Times of India "Girl saved by computer lifeguard"
Story goes like a young girl was drowning in swimming pool which was guarded by an extraordinary computer system that keeps an eye on everybody in swimming pool. The girl was pulled unconscious from the deep end of a public ppol in North Wales, when underwater cameras spotted that she was not moving and alerted a lifeguard. The lifeguard could not see the girl in the crowded pool but was able to respond to the alert and rescued her within 62 seconds. It is the first time in Britain that the Poseidon survelliance system manufacured by a french company has helped life guards to save a swimmer from drowing.

The poseidon system is a series of cameras at the pool that monitor swimmers, matching the images with a database to detect those in distress or unconscious.

That's just amazinag....

see links

http://www.poseidon-tech.com/us/save.html
http://www.poseidon-tech.com/us/system.html