Why Do The Turks Always Refuse To Admit The Armenian Genocide?

This is a question for a world renowned historian to answer, this very question was asked by Le Monde to Dr. Bernard Lewis an Ottoman and Islamic Historian, a New York Times Best Seller Author:

Ottoman and Islamic Historian, NYT Best Seller Bernard Lewis wrote:

You mean, the Armenian version of the history? There was an Armenian problem for the Turks created by the advance of the Russians, and also there was a population with an anti-Turkish sentiment in the Ottoman Empire who sought independence, and they overtly sympathized with the Russians advancing from the Caucasus. Also, there were Armenian bands, the Armenians bragged about their heroic exploits . . in resistance, and the Turks had trouble to maintain order under the prevailing war conditions. For the Turks it was necessary to take the punitive and preventive measure against a hostile population in a region threatened by foreign invasion. For the Armenians it was liberating their land. However, both parties agree that the repression was geographically limited; for example, those measures did not affect the Armenians who lived in the other parts of the Ottoman Empire.

No one has any doubt that terrible events took place; the Armenians, as well as the Turks suffered and perished in equal measure. Yet, no one will be able to tell what the circumstances were like, and how many people died. Consider, for instance, the case of Lebanon [Beirut] that took place recently and in full view of the entire world. During their [the Armenians] relocation to Syria [an Ottoman province at that time] hundred thousands of Armenians died on account of famine and epidemics. However, when you brought up the question of "genocide", you imply that there was a deliberate policy of extermination, to annihilate systematically the Armenian nation. This is very doubtful. The Turkish documents prove an action of relocation, not extermination.