The invention includes a plurality of parts or elements including at least a cap removably coupled with a container formed in the shape of a cup to provide a portable shredder that may be employed mounted in an automobile for destroying receipts and the like to prevent identity theft. The cutting insert has a longitudinal axis, an upper surface, a lower surface and a peripheral surface that extends between the upper surface and the lower surface. If energizing via a diode, the heater failure diagnostic device determines the circuit is abnormal. An information broadcasting system and a method are also provided.