Sonic Devices Target Teenagers In Philadelphia
To keep teens away after closing hours, Philadelphia has installed sonic devices in parks. They are noisemakers that mostly the young hear and have been banned elsewhere.
Read more on NPR
To keep teens away after closing hours, Philadelphia has installed sonic devices in parks. They are noisemakers that mostly the young hear and have been banned elsewhere.
Read more on NPR
ConversionConversion EmoticonEmoticon