Vox reporter Christophe Haubursin takes a look at the madness that is the 2016 clown sightings, which seemed to have snowballed recently in the US and are now happening around the world.

It’s got so bad that, as Haubursin notes, people have asked if its OK to shoot clowns and schools have gone on lockdown—the video also explores how clowns became so scary in the first place.