Despite the high quality of the 60 minutes program, these podcasts contain advertisements for CBS' competing podcast network play.it (ref. wikipedia.org) that are significantly higher in volume than the rest of the program and are played interspersed throughout the episode with no warning. The volume increases are significant enough to damage hearing, particularly when listening to the program through ear buds (which I expect is true for a significant number of podcast listeners).
I have notified CBS of the problem, and over one month later they continue to play these ads at a significantly higher volume than the rest of the program. This failure to properly mix the audio is extremely unprofessional, but it is obviously not an accident. CBS clearly prefers to damage their listenerers hearing in advertisements for their own rival podcast provider, intentionally damaging the quality of the iTunes version. This is yet another example of a major corporation valueing its own profits over the experiences of their customers. I have now had to unsubscribe from this podcast twice, despite being an ardent fan of 60 minutes and its incredible journalism because of the damage listening to the podcast is doing to my ears, and I urge you to do the same.