Glenn Greenwald and the Guardian have published details of another Top Secret US surveillance/security document. This one is a presidential order from Obama to his top spies directing them to draw up a hit-list of "cyber war" targets to be attacked by American military hacking operations.
The 18-page Presidential Policy Directive 20, issued in October last year but never published, states that what it calls Offensive Cyber Effects Operations (OCEO) "can offer unique and unconventional capabilities to advance US national objectives around the world with little or no warning to the adversary or target and with potential effects ranging from subtle to severely damaging".
It says the government will "identify potential targets of national importance where OCEO can offer a favorable balance of effectiveness and risk as compared with other instruments of national power".
The directive also contemplates the possible use of cyber actions inside the US, though it specifies that no such domestic operations can be conducted without the prior order of the president, except in cases of emergency.
The document further contemplates preemptive first strikes on foreign targets.
As Greenwald points out, this document has been published on the eve of a meeting between Obama and the Chinese Premier Xi Jinping. China has been publicly accused by the USA of carrying out electronic attacks on American infrastructure, and Xi has rebutted by saying that the US has engaged in aggressive "cyber-war" attacks on Chinese infrastructure. This document lends credence to Xi's claim.