What does drowning look like?

This seems a basic question, but I certainly didn't know. Please go to "Drowning Doesn't Look Like Drowning" and read.

As we enjoy our summers, and our times in the pool, lake or surf this is a good thing to know.

Wow!

A water bottle that can purify water immediately, weighs 1.5 pounds (less than a kilo) and is good for up to 1,500 gallons of water. This appears to be a huge advance for, not only the military, but public health.