"We affirm our interest in Greece remaining in the eurozone" is a pretty arm's-length commitment - as lukewarm as the average moussaka.

BBC: Grumpy, lukewarm support for eurozone Greece

Bristling with sensors, antennas, a laser and a robotic arm, the Curiosity robot, about the size of a small SUV, is twice the length and four times the weight of any of the three prior rovers that explored Mars.

WSJ: Mars Mission Seeks a Happy Landing

Mr Kellner concludes that "what distinguishes people who call themselves 'English' is a passion for keeping other countries at arm's length".

BBC: Is brand Britain losing its lustre?

Being able to set your shot up (at arm's length) and then just set it recording is just a gift.

ENGADGET: Veho Muvi HD 'NPNG' Edition action camera impressions (video)

The statement said strong corporate governance is a priority for Mr. Erbey and that the companies maintain "arm's length business relationships" with separate boards.

WSJ: Ocwen's Rapid Growth Puts Spotlight on Its Practices

He is right: the state has no business to be running a commercial bookmaker, even at arm's length.

ECONOMIST: The Tote

He is a friend of Mr Reich, but labour's star is waning, so he keeps him at arm's length.

ECONOMIST: American politics

In some industries, the interdependence of suppliers and users of a particular resource makes it difficult for such firms to co-operate at arm's length, since there is always the risk that one will try to undermine the other.

ECONOMIST: Worldbeater, Inc