Computer saves 10 year-old swimmer

Okay, the computer just helped.  With numerous cameras both above and below the water of the swimming pool it detected a little girl had sunk to the bottom and wasn’t moving.  It alerted the lifeguard who pulled her from the water less than 40 seconds later.  She has recovered.  The article is interesting, but the pictures are what really grabbed me.  Here is one just before the lifeguard grabs her: