FOUR men sit around a table. On the tabletop are wires, chemicals, and solder. One of them explains how to mix the chemicals, cut and attach the wires and then place it inside a plastic Tupperware container to create a simple yet high-explosive bomb.

The faces of the four men are not visible. Only the instructors voice is heard. The video gives a detailed explanation of bomb-making techniques. Even someone with just a little knowledge of chemical