I have seen this fabrication video and the tire on fire many weeks ago, but no one bothered to report on it in the Western press because only one side in Syria is being covered. Austin sent me this: "Here's something you'll be interested in (and I'm pretty sure you haven't posted it before; if so, I will throw a tantrum). It's a preview of a documentary of a French journalist who goes by the name "Mani," who was "embedded" with rebels in Baba Amr (you have have seen an earlier video of his amazing, terrifying, and heartbreaking footage here). I certainly don't think that the opposition, especially the inside opposition, has the capacity to fabricate with the scale or audacity of the regime, but this goes to show that not everything is as it appears.
Here's a relevant passage: