UK thinktanks urged to be transparent about funding as $1m US donations revealed

Campaigners urge more openness after more than $1m handed to influential British thinktanks by donors in US

Transparency campaigners have called for thinktanks to be more open about their funding sources, after it emerged that some of Britain's most influential ones received more than $1m (787,000) from from donations in the US in 2021.

They include the Institute of Economic Affairs (IEA), regarded as an inspiration for policies adopted by the Liz Truss government, and Policy Exchange - a conservative thinktank used as a platform by ministers to trail new measures and which recently incubated hardline immigration plans.