An armed military guard was stationed there to defend against terrorist attack, though he often lounged near the doorway and ignored incoming researchers.

• 在那，有一名荷枪实弹的军队卫兵驻扎，防止恐怖袭击。不过，他经常在靠近门口过道的地方随便溜达，对进来的研究员视而不见。