Today in his “On Security and Liberty” column at The Guardian, Glenn Greenwald demonstrates once again that he is one of the Left’s most tenacious and fearless voices.

In “Three Key Lessons From The Obama Administration’s Drone Lies,” Greenwald acknowledges the fact that “establishment sources” have finally begun to call out the Obama Administration for not telling the truth about who is being targeted for death-by-drone. Indeed, the word “lies” is now being employed. Greenwald cites a recent report by McClatchy as well as an article by Micah Zenko in Foreign Policy as evidence of this trend.

Greenwald believes that three lessons can be gleaned from these reports:

(1) The Obama administration often has no idea who they are killing.

(2) Whistleblowers are vital for transparency and accountability, which is precisely why the Obama administration is waging a war on them.

(3) Secrecy ensures both government lies and abuses of power.

With these lessons in mind, Greenwald closes with some strong words for the media:

In light of this evidence, any journalists that continue to rely on US government statements about its killing program are revealing themselves to be eager propagandists, willing to be lied to and help amplify those lies (the same was true of journalists who continued to rely on government statements about “militants” being killed even after they knew how Obama officials had broadened that term to the point of meaninglessness). How many times do we have to learn these same lessons before recognizing their universality?