"Primary authority on the daily violence in Syria"

""Rami Abdurrahman, the director of the Syrian Observatory for Human Rights, which tracks the violence in Syria, said he thought Nusra made up "30 to 40 percent" of the rebels' effective fighting force. "Some groups work in some areas, and you think they are different groups, and they are actually part of Jabhat al Nusra," said Abdurrahman, whose organization is considered the primary authority on the daily violence in Syria. "They are getting bigger every day," he added.""