News Feed was seminal, the turning point which bought them a shot at Built to Last.

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But CEOs often feed a big talent catch to the point where entire departments revolve around that person, as if in mindless orbit.

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Museums feed the market, up to a point.

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They traded for veteran point guard Steve Nash who they knew could feed the ball to Bryant and power forward Pau Gasol and revitalize the offense.

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My point is this: I'm not saying having a Twitter feed instantly makes you a decent train company - it certainly won't get rid of complaints about fare increases and cramped conditions - but it does at least indicate you are trying to engage with your customers.

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"They are not necessarily at that point where some of the younger generation is, where they have News Feed overload, " Gordon says.

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Chair of the trust Eve Tigwell said each site had to be assessed as there was no point putting up a box where "there's nothing for them to feed on".

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Part of the point of the Manhattan Security Initiative is to link up existing private cameras to a central feed, in addition to installing new cameras.

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