Mark Waid Superman/Spider-Man Preview Flash JLU Superboy and more.

Mark Waid is back to preview his Superman Spiderman crossover. We talk about Mister Terrific's time dislaced team in Justice League Unlimited with a Tim Drake Batman and Blue Superman . Action Comics and the Superboy Saga , plus The World's Finest team of Superman and Batman and Mark's return to the Flash co-writing with Christopher Cantwell