| 21. | Busch Gardens Williamsburg in Virginia installed metal detectors at its entrances.
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| 22. | Most churches have installed metal detectors and added extra security personnel.
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| 23. | But a metal detector spotted a handgun in a coat pocket.
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| 24. | They said the metal detectors would have found it by now.
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| 25. | Visitors passed through metal detectors and surrender their bags for inspection.
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| 26. | Visitors are screened by metal detectors before being allowed to enter.
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| 27. | Embassy security officers scanned the heaps of flowers with metal detectors.
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| 28. | Metal detectors are not the final answer in preventing terror attacks,
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| 29. | Officials are mulling whether to install metal detectors at stadium gates.
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| 30. | The military also set up two metal detectors near the entrance.
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