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Summary
US President Barack Obama and First Lady Michelle led Americans to observe a moment of silence in memory of the victims of the weekend's shooting in Arizona that critically injured a US Congresswoman and killed six people, including a nine-year-old girl and a judge.Obama and Michelle observed the moment of silence at 11am local time to honour the innocent victims of the senseless tragedy in Tucson, Arizona, including those still fighting for their lives. As a bell rang three times, Obama and his wife bowed their heads and closed their eyes, their hands clasped in front of them, as members of the White House staff joined them on the side. They then turned around and walked back inside the White House. Obama also signed a proclamation Sunday calling for flags to be flown at half-mast.Federal investigative authorities say Loughner tried to kill Giffords.
