Nasrallah DID NOT say “Sunni radicals”. He said TAKFIRIS

http://www.bbc.co.uk/news/world-middle-east-23724039
“I will go myself to Syria if it is necessary in the battle against the takfiris (Sunni radicals),” Mr Nasrallah said, on his own TV channel.

 

also:

http://angryarab.net/2013/08/17/the-deliberate-distortion-of-the-words-of-hasan-nasrallah-by-western-and-arab-oil-and-gas-english-language-media/