What portion of Syrian Rebels are radicals?

The EU weapons ban on Syria was lifted to arm “moderate” rebels, but these will be hard to find

“when the Economist magazine was outlining the most important fighting groups in Syria,” – see above – “they noted…that the only important non-Islamist group was in the Kurdish areas…”
http://www.counterpunch.org/2013/05/28/how-obama-and-al-qaeda-became-syrian-bedfellows/

The NYT also confirmed the complete dominance of extremists : “Nowhere in rebel-controlled Syria is there a secular fighting force…”

“It would be the first conflict where we pretend we could create peace by delivering arms,” the diplomat said. “If you pretend to know where the weapons will end up, then it would be the first war in history where this is possible. We have seen it in Bosnia, Afghanistan and Iraq. Weapons don’t disappear; they pop up where they are needed.”
http://www.independent.co.uk/news/world/europe/divided-europe-imperils-syrian-arms-embargo-8632376.html