This surprised me. If you are near people in the water this really important. I NEVER KNEW and I live in the land of 10,000 lakes
There is a warning but a little spoiler, its not at all graphic and the little boy does get saved at the end. If you do not want to watch the video at least read the story.
I found this to be eye opening I hope you do to.
http://www.myfoxtwincities.com/story/25583480/investigators-drowning-is-silent#at_pco=cfd-1.0