The Z&AC-based NLC working group’ has been considering issues relevant to the operation of an X-band 0.5-l .O TeV collider. This report summarizes some of the results the group has achieved to date. The NLC2 will collide trains of closely spaced bunches of lOlo particles. Typical parameters are 1.4 ns for the inter-bunch spacing, 100 bunches/train, and 180 trains/set. Its final focus (FF) will ...