The agency's apparent failure to uncover the link between immigrant murders and Germany's neo-Nazi community which the agency says has been infiltrated with German agents has prompted criticism that the service played down the threat posed by antiforeigner elements.
TripAdvisor was even investigated by the Advertising Standards Agency (ASA) in September 2011 following growing criticism of its apparent failure to monitor fake comments posted on its website.
But the news agency Reuters says it has seen a draft SNC communique being discussed in Cairo which demonstrates an apparent softening in the group's stance.