Sina Weibo experienced its first mass virus attack at around 8pm this evening.

新浪微博于今晚8点钟遭受了第一次大规模的病毒袭击。

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Mass-transit systems across the world responded to the Moscow subway attack by heightening security.

莫斯科地铁受到袭击后，全世界的公交系统都作出反应，加强了安全保障。

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One week after 77 people in Norway were killed in a bomb attack and a mass shooting, the first funerals and memorial services for the victims have taken place.

在挪威的77人在炸弹爆炸和大规模枪击事件中遇难一星期之后，国家为受害者举行首场葬礼和追悼会。

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He said shortly after the largest mass murder since World War II, the supreme commander of its forces was telling his parliament how he ordered that attack.

VOA: standard.2009.10.27

The proliferation of long-range strike systems, particularly ballistic and cruise missiles, could allow an aggressor to launch a surprise mass attack on these target sets.

CENTERFORSECURITYPOLICY: Center for Security Policy | The Measure of a Superpower: A Two Major Regional Contingency Military for the 21st Century | Page: 3

Because the chances of that happening are far greater than an attack by someone bent on mass murder.

FORBES: The Insanity of Arming School Employees

The closest equivalent to a DDOS attack in the offline world would be a mass sit-in or a mob milling around a building, making entry and exit impossible.

ECONOMIST: WikiLeaks, protest and the law