The availability heuristic is a mental shortcut that occurs when people make judgments about the probability of events by how easy it is to think of examples...Sometimes this heuristic is beneficial, but the frequencies that events come to mind are usually not accurate reflections of their actual probability in real life.

http://en.wikipedia.org/wiki/Availabil…

Which is more dangerous to humans: A shark or a horse?

Whoever can guess how this term is related to today's events WINS!