al Qaida/ Nusra Front still key in Syria fighting

"... Jabhat al Nusra, the al Qaida-allied Syrian rebel group that’s also known as the Nusra Front, remains integral to efforts to topple the government of President Bashar Assad despite reported rifts within the group over its terrorist ties and claims by other rebels that Nusra’s assassinated rebel leaders in eastern Syria to consolidate its hold on oil fields and other strategic infrastructure there..."

Read more here: http://www.mcclatchydc.com/2013/05/24/192185/despite-word-of-split-over-al.html#storylink=cpy