Stop or I'll Tweet!

Police agencies use micro-blogging tool for crime tips, traffic disruptions, warnings, bomb scares, wildfires, school lockdowns and evacuations.
A growing number of police and fire agencies are turning to social networking Web sites such as Twitter, which lets users send text-message “tweets” to a mass audience in 140 characters or less. The tweets can be read on the Web or on mobile phones within seconds.
Some departments use Twitter to alert people to traffic disruptions, to explain why police are in a certain neighborhood or to offer crime prevention tips. Others encourage leads on more pressing matters.
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