Mr Brennan is believed to have been at the heart of trying to formalise the rules of this new war through the creation of a "playbook": a set of criteria and methods for how decisions of life and death should be made.

BBC: Drones at the forefront of the Brennan hearing

John Brennan is believed to have been at the heart of trying to formalise the rules of this new war through the creation of a "playbook": a set of criteria and methods for how decisions of life and death should be made.

BBC: Drones at the forefront of the Brennan hearing

Dr Giles explained that the measurements gathered by satellite provided a continuous data-set and had a number of advantages over other methods.

BBC: Arctic ice thickness 'plummets'

It greatly simplifies parallel programming, enabling GPU acceleration of a broader set of popular algorithms, such as adaptive mesh refinement, fast multipole methods and multigrid methods.

ENGADGET: NVIDIA outs a pair of Tesla GPUs to electrify your supercomputer

The scheme will also be encouraging sheep farmers to sign up to a set of principles - including ensuring their animals are born and bred within a specified area and reared using traditional methods.

BBC: Prince's painting to help farmers

The intelligence officials were concerned that full disclosure would set a precedent for future exposure of the agency's sources and methods, and would threaten America's relationship with allied intelligence services.

BBC: Obama publishes 'torture' memos

To tackle questions in a fresh way, they may have to set aside many of their favourite techniques and methods.

ECONOMIST: Economics focus

When the Shared-First approach is implemented in concert with PortfolioStat investment reviews, standardized architecture methods, and Digital Government planning concepts, agencies will have a stronger set of tools by which to innovate with less.

WHITEHOUSE: Introducing the IT Shared Services Strategy

In 2006 a review by America's National Research Council endorsed points Mr McIntyre and his colleagues made on some methods used to make the hockey stick, and on doubts over a specific set of tree rings.

ECONOMIST: The science of climate change