The division of labour among the intelligence arms, Aman, Shabak, and Mossad, in the current structure of the IIC, is usually established upon a geographical basis. There are interfacing and overlapping segments, often rather wide, among the organizations. The level of coordination and inter-regional cooperation has suffered in the past from fundamental shortcomings, which has hindered the effectiveness of intelligence work on several fronts. The organizations repressed the necessity for the mutual sharing of intelligence information and in synchronizing some activities.