Someone really tried to get through a checkpoint at an Indiana airport with this in their carry-on.

After alarming in the X-ray, TSA officers discovered 30 electric matches, a bag of potassium chlorate in the original packaging, a bag of titanium powder in the original packaging, a bag of powder that appeared to be a mixture of potassium chlorate and titanium powder, and a vest that appeared to be a suicide vest. All of the items were inert and the passenger was an explosives instructor.