The blast on April 19, 1995, killed 168 people and injured hundreds. It was the worst terrorist attack in US history until September 11, 2001.

这场爆炸案发生于1995年4月19日，造成168人死亡，数百人受伤，是“ 911事件”发生以前美国历史上最悲惨的恐怖袭击案。

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The court heard that seven flights were being considered by the group in what would have been the largest terrorist attack since September 11,2001.

VOA: standard.2009.09.07

Washington (CNN) -- A Senate committee began its assessment of intelligence reforms put in place after the September 11, 2001, terrorist attacks by focusing Wednesday on the alleged Christmas Day attack aboard a plane landing in Detroit, Michigan.

CNN: Senators hear testimony on alleged Christmas Day bomb plot

Although the seeds of this change were planted long ago and have blossomed gradually over the years, it was the terrorist attack against the United States on September 11, 2001, that expedited and, in the minds of many, legitimated this important development.

NPR: Rules Should Govern Torture, Dershowitz Says

Bin Laden, who is about 51, is the head of the al Qaeda terrorist network, which was responsible for the September 11, 2001, attack on the United States that killed 2, 751 people.

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