 I'm Kai Risdahl, a new series about the analog age, next time on Marketplace. Ahead at 3 and again tonight at 6.30 on KNPR. Support for Nevada Public Radio comes from Dr. Carlos Letelier with the Center for Oral Surgery of Las Vegas, caring for local families and supporting the greater Las Vegas community for more than 20 years. For more information or to schedule a consultation, visit lasvegasoms.com.