The Turkish press has an important piece on the scale of looting in Turkey (Ömer Erbil, "Turkish museums’ storage crowded with smuggled artifacts", Hürriyet August 9, 2011). Last year alone a staggering 68,000 objects were seized: that is 1300 items per week. (And if the seizures represent, say, a tenth of all looting we can appreciate that this is a major threat to the extant archaeological record.) Apparently some 5000 individuals were involved with the smuggling ring.
The seizures are creating a storage problem and there is a suggestion that confiscated material will be sold to dealers, thereby creating an interesting "provenance".