@mashable @Discovery_News My college installed a "lockdown" sys. (activated from INSIDE 1 room) that locks entire building & calls police.
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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Impressive. “
@mashable: Students Invent Lock to Stop School Shooters http://on.mash.to/1b8Oxlf via@discovery_news”Thanks. Twitter will use this to make your timeline better. UndoUndo
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Wow. RT “
@mashable: Students Invent Lock to Stop School Shooters http://on.mash.to/1b8Oxlf via@discovery_news”Thanks. Twitter will use this to make your timeline better. UndoUndo
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@mashable We've found a low tech solution, keeping the door locked, but putting a magnetic strip over the jamb, just pull strip to lockThanks. Twitter will use this to make your timeline better. UndoUndo
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This is amazing. “
@mashable: Students Invent Lock to Stop School Shooters http://on.mash.to/1b8Oxlf via@discovery_news”Thanks. Twitter will use this to make your timeline better. UndoUndo
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“
@mashable: Students Invent Lock to Stop School Shooters http://on.mash.to/1b8Oxlf via@discovery_news” wowThanks. Twitter will use this to make your timeline better. UndoUndo
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