"Does this mean cats are developing missile technology?"
Yes - watch out for the cats. They meet secretly to solidify their plans to conquer the world. They have developed a very intricate method of communication using the wires in the walls of your house. That's why every once in awhile they start staring at the wall and meowing at it. They are receiving instruction.
Once they learn how to open a can of cat food all hope is lost. We'll have to start living in underground caves.