Part of the problem is that the post-punk and new wave genres which make up the second half are a very broad musical church (think anything from The Pretenders to Joy Division via The Stranglers).

The weapons give off sound waves that can trigger sharp ear pain, disorientation, eardrum ruptures or even irreversible hearing damage. The incident piled more pressure on the president ...

At the heart of the technology lies ultrasound—sound waves that travel at frequencies beyond the range of human hearing. While typically silent to our ears, ultrasound waves can be manipulated ...