Regarding number 2, I believe the snowden leaks implicated the US and Israel for Stuxnet? The wikipedia source for that claim is http://www.theregister.co.uk/2013/07/08/snowden_us_israel_st... which refers to this email interview: http://cryptome.org/2013/07/snowden-spiegel-13-0707-en.htm

>Interviewer: Did the NSA help to create Stuxnet? (Stuxnet is the computer worm that was deployed against the Iranian nuclear program.)

Snowden: NSA and Israel co-wrote it.