Classified Secret is an episode from the long running CBS radio anthology series Escape.
This is a very fine little play written and directed by Anthony Ellis. It features a beautifully underplayed performance by Parley Baer as a spy on a bus ride. The whole play is kind of quite with some cold-blooded murderous calculation and action. Max Schmid played it at the top of his Golden Age of Radio Program on August 31, 2008.
You can hear it until Saturday Sept 13, 2008 on the WBAI Podcast page. Just scroll down to Golden Age of Radio August 31, 2008.
It is also available at Internet Archive.
If you are at all a fan of Gunsmoke you might enjoy hearing Bear who plays Chester in a completely different role. Classified Secret is a Cold War spy story and the best in radio melodrama of the period. A very good production all around.
It make a decent substitute while BBC Radio 4 listeners await the sorting out of the iPlayer mess, should that ever occur.