They are outliers. Most tragedies the people are dead, outcome is known. These situations usually have these things in common: 1. Very unusual situation 2.

They are outliers. Most tragedies the people are dead, outcome is known. These situations usually have these things in common: 1. Very unusual situation 2. Race against the clock 3. Remote location 4. Extreme measures needed for rescue that may have never been done 5. May still die even if found