"I call on Americans to observe a moment of silence to honor the innocent victims of the senseless tragedy in Tucson, Arizona, including those still fighting for their lives," Mr.

我希望与美国人民一道在默哀过程中自省，并向在Tucson和Arizona两地公共悲剧中的无辜死难者致敬，包括那些仍为改善自身境况而奋斗的人民。

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The Celtics gathered with the Raptors at midcourt to observe a moment of silence in honor of the victims prior to Wednesday night's regular-season finale.

NPR: Celtics Back On Court, Offer Tribute To Victims

Massachusetts Gov. Deval Patrick has asked residents to observe a moment of silence at 2:50 p.m.

NPR: Boston Marks Week From Marathon Bombs With Silence

Massachusetts Gov. Deval Patrick asks residents to observe a moment of silence Monday at 2:50 p.m.

NPR: 10 Things To Know For Monday