The leaks of thousands of files by CIA spy Edward Snowden have caused “enormous damage” and handed terrorists the “gift” to attack the UK “at will”.

Some call Snowden a hero : “Snowden did what he did because he recognised the NSA’s surveillance programs for what they are: dangerous, unconstitutional activity. This wholesale invasion of Americans’ and foreign citizens’ privacy does not contribute to our security; it puts in danger the very liberties we’re trying to protect.”

But others see the damage Snowden has done to our security and the help he has given to those who want to kill us by the millions:
UK Telegraph  "It is feared around Whitehall that the revelations have resulted in a “guidebook for terrorists” while there is frustration that the American is being heralded as some kind of heroic whistleblower. 

"Sources find it incomprehensible that exposing spy agency techniques for tracking terrorists has been argued to be in the public interest."....