They are our key link for our intelligence about what's going on.
But it is also a canny way of leveraging a key link in the supply chain.
He's the key link in a food chain of buyers, sellers, speculators, and hangers-on.
Now that he's dead, Isil has lost a key link between their networks".
The key link in the network was Imad Hage, who has spent much of his life straddling two worlds.
But it could also give hospital staff important extra understanding of patient needs and a key link to other professionals.
The Internet, and social networking in particular, today provides the key link between the region's bands and their potential fans.
Starting with the key link between Salzburg and Vienna, Austria has continued to develop its extensive expressway (autobahn) system.
Keith Wood: 7 A man possessed in the loose, with one classic run from deep and many close-quarter drives; and a key link in the Robinson try.
As a key link to Kennedy International Airport, Penn Station and the Port Authority Bus Terminal, the A train is many visitors' first impression of this city.
A key issue was whether Werritty could be shown to have benefited financially from the friendship; that key link appeared to emerge on Friday.
