At Mount Charleston in the Toiyabe National Forest, it's the call of the wild. Not the coyote's howl or the blue jay's chatter, but the sound of emergency sirens echoing through Kyle and Lee ...

And power is a dangerous thing.. Eighty-five percent of our (on average) 1000 tornadoes a year in the U.S. are EF0-EF1, which produce 5 percent of tornado fatalities.

The agent controls ‘background’ vehicles in a simulation to find potentially unsafe situations, thereby building a dense set of dangerous events on which to train an autonomous test vehicle.

Photo: Shutterstock. Angels Landing in Zion National Park. This one should come as no surprise, but the No. 1 most dangerous hike in Utah is Angels Landing in Zion National Park.