Police Turn Up Volume for GOP Convention

Forget the megaphones. Police will have a much more high-tech -- and louder -- option to make themselves heard over the din of Manhattan traffic and noisy protesters outside the Republican National Convention. It's called the Long Range Acoustic Device, developed for the military and capable of blasting warnings, orders or anything else at an ear-splitting 150 decibels. Authorities on Thursday unveiled a mini-arsenal of devices and counterterrorism equipment they're getting ready for the convention, which opens a week from Monday. [more ]