Major-General Henry Osman showed a video which he said showed bomb damage on surface-to-air missiles site near Kandahar.

BBC: US planes pound Afghanistan

On the surface, the social-networking site would seem a perfect example of the old entrepreneurial model, with Mark Zuckerberg (setting aside the pesky question of whether he really invented the thing) as a sort of modern Alexander Graham Bell.

FORBES: Capitalism, Invention, Innovation and Entrepreneurialism: Words That Do Have Meanings

Deploying a remotely-operated vehicle (ROV) in the Cayman Trough, they stumbled across a previously-unknown site nearly 5000m below the surface.

BBC: Deepest undersea vents discovered by UK team

Where the feed lies closest to the surface, as, for example, at the Suncor site, the bitumen is strip-mined and then separated.

NEWYORKER: Unconventional Crude