Mandy Patinkin as Saul Berenson in Showimts “Homeland.” (KENT SMITH/SHOWTIME)

Vans are also traveling to New York, Philadelpha, San Francisco and Los Angeles as part of the publicity campaign for the show which also stars Claire Danes and Mandy Patinkin.

If you’re busy that day, Showtime also has a simulated-polygraph app, which uses voice stress analysis to evaluate your answers.

 “Homeland,” based on the Israeli series “Prisoners of War,” stars Danes as a CIA officer who thinks the intelligence that led to the rescue of U.S. soldier Brody, who had been missing and presumed dead for eight years, was a setup and may be connected to an Al Qaeda plot to be carried out on American soil.