The slide deck provides no support for ~adamnemecek's claim that the Palantir CEO himself proposed the plan. And the CEO's unequivocal statements afterwards suggest that if there wasn't a bright-line inside Palantir against offensive operations before 2011, there has been since.
But also, the branding of the presentation does not reliably indicate the origin of the specifically offensive bullet points (most notably the "Potential Proactive Tactics" slide), nor whether the contents ever progressed past trial-balloon status.
In particular, coverage by Greenwald [1] (working from more email thread context for which I can't find a current online source) identifies HB Gary principal Aaron Barr as the verbatim source of some of the most-aggressive anti-Greenwald language.
So I can see that someone at Palantir was coordinating with the other entities and leading the document-prep. But they also cut-and-pasted material from the potential contract partners, including vague proposals outside Palantir's focus, that may never have been approved or presented.
I'd ascribe those bullets to Palantir itself if that deck was in fact ever presented to a client. We don't know if that's the case. If instead that text just bounced around as a discussion draft (including their more-aggro partners), but went nowhere, and was eventually categorically disavowed... then it's a stretch to say that the company or its leadership actually advocated those steps.
[1] http://www.salon.com/2011/02/15/palantir/