An Idea For Tracking Lost Hikers

http://www.theguardian.com/us-news/2016/may/26/hiker-who-went-missing-on-appalachian-trail-survived-26-days-before-dying

The camp was less than two miles from the Appalachian trail. Adam wrote that walking south from the campsite, the dense forest became open woods with good visibility after 60-70 yards, and after another 25 minutes he found “a clear logging road” that led to lodging. In total the walk took about 30 minutes.

Why can’t there be a tracking device that can activated once to send an SOS signal to all nearby Bluetooth/Radar devices so that she could be saved? What about an infrared coloring marker that can be detected through dense brush in the cloudy night sky?

Can lojack and other GPS-enabled devices in remote locations have saved her?

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