This week, Ira Sternberg spoke with comedian Greg Hahn, headlining in the Laugh Factory at the Tropicana Las Vegas through January 15. In this episode of Talk About Las Vegas, Greg talks about how the Marine Corps helped his comedy career; why he modeled his comedy ca-reer on a famous drummer; why he thinks getting older only makes you funnier; how he wins over an audience; and why “funny” is the prime directive.