Chris Hansen Discusses His Latest Dateline Special

June 15 - NBC's Chris Hansen has gone from catching predators to catching pimps in Sin City in his Dateline specials. Tonight at 10pm, Hansen "visits the darker corners of Las Vegas," for "Vegas Undercover."

But before you see Hansen go undercover, you can hear him this morning on the mediabistro.com Morning Media Menu. We'll talk to him about this special and more.

Also discussed: the jailed journalists in North Korea and how Twitter has changed the news world.