Jon Stewart and Stephen Colbert had dueling rallies in DC in October, 2010. Stewart’s was “Rally to Restore Sanity” and Colbert’s was “March to Keep Fear Alive!”

Obviously, Colbert is a great satirist who was poking fun, since we sure don’t need a rally to keep fear alive. Alarming messages are all around us, like the news about global warming or the “Threat Level Orange” announcements every few minutes in the airport.

Some of those messages are true and worth heeding. For example, dumping carbon into the atmosphere must inevitably make the planet hotter; it’s basic physics.

But others are wildly exaggerated: the actual odds of a bad event on your airplane flight are “Threat Level Chartreuse” — a bucket of green paint with a drop of yellow.

How do we tell the difference between real threats and bogus ones? [Read more...]