Still jittery after a series of deadly terrorist attacks in the past few years, blamed on rebel Chechen separatists, Russian authorities are leaving nothing to chance concerning security.

• 在过去几年里，俄罗斯发生了一系列致命的恐怖袭击，人们至今依然心有余悸。当局认为这些事件是反叛的车臣分离分子造成的。在这种情况下，俄罗斯当局对这次庆祝活动在保安方面不敢有半点疏忽。