If I were Neil deGrasse Tyson—host of the Pluto Files and director of the Hayden Planetarium—I wouldn't be able to sleep at night. Not after reading the hate mail from thousands of outraged American kids.

The kids wrote to de Grasse Tyson demanding an explanation about why scientists changed Pluto's classification from planet into a Kuiper Belt object. The Natural History Museum also retired it from their Solar System model, which logically got a lot of kids reaching for their pellet guns.

Neil, they may sound sweet, but they are vicious, those beasts. [PBS]