Techniques, apparatus and systems that use one or more composite left and right handed metamaterial structures in processing and handling electromagnetic wave signals. The processor is programmed to receive input data, determine that the input data is tainted, store the tainted input data in a location in the memory, and based on storing the tainted input data in the location, label the location as a tainted location. A jigging assembly imparts an up and down movement to the line and the attached hook, to attract fish to the hook and bait. A fastening device can further include a cam rotatably coupled to and positioned atop the first load distributing member. The retainer includes a plurality of flanges along the opening which engage the neck of the lamp to securely attach the retainer to the lamp.