What, exactly does the CIA know?

Dale Peterson's website has a very interesting and provocative discussion about the CIA disclosure at SANS last week. This is the second time SANS has made an unverifiable disclosure on control system cyber extortion. SANS needs to provide more detailed information not only to validate its authenticity but to provide enough information for industry to be able to protect itself. I can think of at least 10 technical questions I would like answered- I'm sure others can come up with more.Joe