Video Sneak Peek: Behind the Scenes of the 'CSI' Trilogy

In anticipation of the week-long CSI crossover episodes next week--they call it "CSI Trilogy" and I call it "Langston week"--here's a behind-the-scenes video on how the whole thing panned out.  Apart from the usual details on what we should expect next week, all those bits about human trafficking and severed legs, here's a chance to see why Raymond Fishburne looks forward to working with David Caruso and Gary Sinise, why it took a long time for a three-show crossover like this to happen, and how Langston does a Horatio impression.