U.K.-based Compound Security Systems Ltd. sells a device to repel loitering teens with a frequency adults can't hear.

WSJ: A California City Is Into Tweeting��Chirping, Actually��in a Big Way

Yes that's right, the base metal element lead, Pb, or more exactly the lead-based chemical compound Pb(CH2CH3)4 added to petrol to make car engines run more smoothly.

BBC: Does lead poisoning make you violent?

The American soldier accused of carrying out the shooting was based at a small compound in Kandahar province.

BBC: Afghanistan's Taliban suspend peace talks with US

Cloud-based BI and analytics will see an 84% compound annual growth rate over this period.

FORBES: Fastest-Growing Category of Cloud Computing: Business Intelligence and Analytics

The case that bin Laden was living there was entirely circumstantial and was based on the fact that residing at the Abbottabad compound was a longtime al Qaeda insider and that he and the other people living in the compound were taking elaborate measures to deceive their neighbors about their identities.

CNN: John Brennan, Obama's counterterrorist