I wish I would have joined this forum earlier, there is a bunch of great information and hopefully this will help pick up the activity.
These are two podcasts that I listen to often. The Spycast is put together by people who run the International Spy Museum in Washington DC. The hosts also have many years of service in intelligence in the US.
If you have any favorite podcasts and listen to on a regular basis please send them my way I'm always looking for podcasts to help pass the time at work.