Minnesota Public Radio slideshow:
Weapons screening begins at Hennepin County Government Center
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Metal detectors, similar to ones at airports, are now being used in the government center. On the first day of the new system, long lines formed at some entrances. (MPR Photo/Art Hughes)

Metal detectors, similar to ones at airports, are now being used in the government center. On the first day of the new system, long lines formed at some entrances.

(MPR Photo/Art Hughes)
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