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in the dark on key details. Where would the president and Michelle Obama sit? When was Obama supposed to speak? Who else would be on stage when he did?
• The result was an array of confusion and security risks that typically would not be tolerated by the Secret Service in the United States, underscoring how the agency is often at the mercy of foreign governments to make arrangements when the president travels overseas.
• While there were metal detectors and x-ray machines at the stadium, they were not used on the initial crowds streaming in for the ceremony, according to Associated Press reporters on scene. Many people walked through with little or no screening. Inside the massive stadium there were few signs of the heavy security that routinely would accompany an event with the president and other world leaders.
• The VIP section where Obama and dozens of other dignitaries sat, including former Presidents George W. Bush and Bill Clinton, was protected by a short pane of protective glass that covered only those sitting in the first row of seats. Obama and his wife were seated several rows back. Large crowds were allowed to gather in front of where Obama sat, with no visible security nearby.
• And when Obama made his way to the stage to deliver his speech, the South African sign-language interpreter who stood an arm's length away was a schizophrenic prone to violence. The interpreter has since been derided as a fraud.
• ___

• CENTENNIAL, Colo. (AP) -- A Colorado high school student with an apparent grudge against a teacher wounded a classmate with a shotgun before killing himself, chilling a state that's still trying to make sense of mass shootings at Columbine High School and an Aurora movie theater.
• Quick-thinking students at Arapahoe High School on Friday alerted the targeted teacher, who quickly left the building. Police immediately locked down the scene on the eve of the Newtown massacre anniversary -- a somber reminder of how commonplace school violence has become.
• Within minutes, the 18-year-old shooter was dead, apparently of a self-inflicted gunshot wound.
• Arapahoe County Sheriff Grayson Robinson identified the gunman as Karl Halverson Pierson, a senior who participated in debate activities. Robinson said Pierson had had an altercation with the teacher, but the sheriff did not provide de

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