HAVE GREENWALD AND SNOWDEN BEEN SET UP?

In an interesting article on the NSA PRISM scandal Steve Kinney reveals that
1. there was a plan to discredit Wikileaks
2. that plan involved submitting false documents
3. Glenn Greenwald was mentioned as a target for discrediting

Intelligence services have been feeding false information to known enemy informants in their own ranks for a long time, and they are very good at it.

Today, the potential whistleblower is one of the most dangerous informants an intelligence service can confront.

Was Edward Snowden spotted before he decided to leak documents, and set up by the NSA?

Substantial evidence supports the possibility that he was. Numerous questions cast doubt on the authenticity of the Power Point slide show describing PRISM, but the UK Guardian has not seen fit to release it to the public. Perhaps Glenn Greenwald should anonymously leak this file: In the words of Snowden himself, “The public needs to decide.”

...“The presentation, which has been seen by The Independent, recommends a multi-pronged assault on WikiLeaks including deliberately submitting false documents to the website to undermine its credibility, pioneering cyber attacks to expose who the leakers to WikiLeaks are and going after sympathetic journalists.

“One of those mentioned is Glenn Greenwald, a pro-WikiLeaks reporter in the US. Writing on Salon.com. Greenwald stated that his initial reaction was “to scoff at its absurdity.” – Jerome Taylor, The Independent[10]

...Was Edward Snowden under surveillance at intelligence contractor Booz Allen in advance of releasing the PRISM document?

[source : NSA Deception Operation? Questions Surround Leaked PRISM Document’s Authenticity
Was Edward Snowden spotted before he decided to leak documents, and set up by the NSA?, Global Research, http://www.globalresearch.ca/nsa-deception-operation-questions-surround-leaked-prism-documents-authenticity/5338673, 12th June 2013]

Why would Snowden be under surveillance?

(Reuters) - While working for U.S. intelligence agencies, Edward Snowden had another secret identity: an online commentator who anonymously railed against citizen surveillance and corporate greed.

Throughout the eight years that Snowden worked for the Central Intelligence Agency and National Security Agency contractors, he posted hundreds of messages on a public Internet forum under a pseudonym.

...He was also a prolific commentator on technology forum Ars Technica, posting approximately 750 messages using the screen name "The True HOOHA" from late 2001 to 2012.

Most of the postings were not political in nature: he dispensed advice about government careers, polygraphs and the 2008 stock market crash. He claimed to own the same gun as James Bond and posted glamour photos of himself. He jokingly compared the video console Xbox Live to NSA surveillance.

[source : While working for spies, Snowden was secretly prolific online, Reuters, http://uk.reuters.com/article/2013/06/14/uk-usa-security-snowden-online-idUKBRE95D01Y20130614, 14th June 2013]

Snowden could have been under surveillance for his postings, possibly for years.

If Snowden was set up then why has the information he has revealed been revealed now?