High-tech police tools: crime busting breakthroughs or Big Brother?

The futuristic police technologies of traditional sci-fi movies are becoming a reality today.

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LRAD Audio Cannon

The Long Range Acoustic Device (LRAD) has been around for a while but has gained notoriety in the wake of the ‘Occupy’ protests. It’s essentially a really loud speaker – so loud that those exposed to it can be temporarily debilitated, as shown in this video of its first use in the United States.

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