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in the face of terror sidner dnt orig_00010206
in the face of terror sidner dnt orig_00010206

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    In the face of terror

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In the face of terror

Chief Joseph Hannigan led his officers in the Dallas sniper attack, but this was not his first encounter with terrorism. CNN's Sara Sidner reports.

In the face of terror

Chief Joseph Hannigan led his officers in the Dallas sniper attack, but this was not his first encounter with terrorism. CNN's Sara Sidner reports.