Analysis of animal teeth found at a nearby settlement suggested people travelled the length of the country to help with the building.

BBC: Stonehenge builders travelled from far, say researchers

Historically, defeating an insurgency has taken eight, nine, 10, 11, 12 years, about the same length of time you suggested it takes to train actually a senior sergeant.

NPR: U.S. Turns More Attention to Training Iraqi Forces

We have recently suggested a number of such reforms in our book-length policy research tool, 25 Ways to Reduce the Cost of College, which features 25 chapters, organized into five topical sections, each describing a different way that college administrators and policy leaders can make college less expensive.

FORBES: Attacking Higher Ed Cost Inflation: Reform Academic Employment Policies

Or was he asked, as the government's Chief Medical Officer Dr Tony Jewell suggested on Radio Wales this morning, to write an arm's length report which set out the clinical case for change and bring his expertise to bear to make the case for change and deliver the killer argument for the government, and the health boards' case?

BBC: The Minister's end of term report

In a separate effort to make savings, council officials have suggested handing over the running of culture and leisure facilities to an "arm's length" organisation.

BBC: New plan to build council houses in Highlands