the real reason the MPA was created in the Chagos archipelago may never be known

"The US cable quoted Roberts, who is due to become the next governor of the Falkland Islands, telling the Americans that as a result of imposing a marine protected area (MPA) on the territory, there would no longer be "human footprints" or "Man Fridays" on the islands. The US rents a military base on the largest island, Diego Garcia, and the Chagossians have been in a long-running dispute with the Foreign Office about their right to return home." "This decision, that has potentially global ramifications, means that the real reason the MPA was created in the Chagos archipelago may never be known. The foreign secretary [William Hague] has opposed the use of WikiLeaks cables in court so as to deprive the Chagossians of the opportunity to cross-examine the BIOT commissioner as to his motives for the MPA, which were recorded by the US officials as being the best way to defeat the resettlement of the islands by their rightful inhabitants, with no human footprints or Man Fridays." "The inhabitants of the archipelago were removed in the 1960s and 1970s when the UK agreed that the US could build its base on Diego Garcia." (thanks Amir)