An Olympic security plan five years in the making is taking shape in Vancouver this week.
本周，温哥华正在制定一项为期五年的奥运安保计划。
The Canadian Police is heading up the $900 million security operation, the largest in Canada's history.
加拿大警方正在进行耗资9亿美元的安全行动，这是加拿大历史上规模最大的一次。
It will involve 15,000 police, private security and military personnel.
这将包括15000名警察、私人保安和军事人员。
The Winter Olympics will take place February 12th to 28th in 2010 in Vancouver.
冬奥会将于2010年2月12日至28日在温哥华举行。
Political protests may pose the biggest threat to the games.
政治抗议可能对奥运会构成最大的威胁。
The threat of a terrorist attack is rated as low.
恐怖袭击的可能性较低。
But the memory of the 1972 Munich Olympics has not gone away.
但1972年慕尼黑奥运会留给人们的记忆并没有消失。
That year, a terrorist group attacked the athletes' village, eventually killing 11 Israeli athletes and coaches.
那年，一个恐怖组织袭击了奥运村，最终杀死了11名以色列运动员和教练。
It is no coincidence that in Vancouver security patrols are particularly evident around the low-rise apartment buildings, where the athletes will be housed.
温哥华运动员居住的低层公寓大楼周围安全巡逻比较密集，这不是巧合。
In downtown Vancouver, some roads are already closed, and rings of security fencing surround some key venues.
在温哥华市中心，一些道路已经封闭，一些关键场所周围围起了安全围栏。
Perched on top of the fencing is a network of 900 surveillance cameras to detect intrusions.
位于围栏顶部的是一个900个监控摄像头的网络，用于探测入侵。