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there, but never stepped in. >> obviously, one girl is completely beating up the other. >> reporter: this witness to the attack is asking the same question we all are. how could this have happened? >> i think we can all look at the facts of this one. really? you've got three male security guards there and they couldn't do anything? doesn't seem like security. >> reporter: under the current rules, the guards were limited in what they could do. >> in fact, transportation authority says the guards are contract workers, not trained officers, and they did exactly what they're supposed to do, observe and report. not get involved. well, authorities are investigating whether their job description might need to be overhauled. vancouver, the winter olympics games and one of america's brightest hopes for gold, al pine skier lindsey vonn is testing her injured shin, hitting the slopes with other members of team u.s.a. vonn was hurt in a fall during a

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