Systems and methods of x-ray backscatter radiography are provided. The communication system 100 further includes a content repository 274 storing the content in a satellite transport processing system 250 changing the first packet identifier to a second packet identifier in response to the programming schedule and communicating the transport stream to a user device. Optical fibers are passed through the holes, and at least one of the wafers is moved laterally with respect to the other wafers, so that sidewalls of the holes clamp the optical fibers into a desired location. The surgical tool further includes a linkage arm connecting the rocker assembly and the ratchet so that rotation of the ratchet causes rotation of the rocker assembly.