Sounds like they're all just different brands of scum.
But really, the admissions were really nothing much, I'm actually surprised that's all they got. The former minister was forced to resign under allegations of corruption and was/is under investigation for it, no big surprise. And the talk about having access to Ljubljana's mayor (and that he is "for sale") - well that's been in the news for years, he's under several open investigations and many more were already closed (he always comes out victorious - either because he's innocent and it's all just hearsay, or more likely because he's extremely good at dodging liability and covering his tracks). The rest is just people who used to have some power trying to appear like they still have in order to impress a potential employer or get a business deal (that was the agents' cover).
Again, I hope the authorities are combing the tapes for evidence, but it really wasn't anything bombastic. That the Israelis were doing this on the other hand...