In an in-depth informational episode of Al Jazeera's podcast "Bad Yesterday", journalist Khadija bin Qena discusses the story of the US intelligence services with her guest, Dr. Muhannad Salloum, Professor of Security Studies at the Doha Institute.

Dr. Salloum recounts the story of the emergence of the American intelligence and its various devices, their areas and mechanisms of work, and how they recruited agents around the world, while the debate about the failure and success of these devices at the global level rages.

What are the US intelligence services?

What are its true capabilities and working mechanisms?

Who monitors and evaluates its performance?

Is it the most powerful in the world?