UK nuclear revelations: how bad could they get and could they affect the US and Europe?

Key things to know about hacking, radioactive leaks and toxic workplace culture at Sellafield, Europe's most hazardous nuclear site

• Sellafield nuclear site hacked by groups linked to Russia and China
• Sellafield workers claim toxic culture' could put safety at risk

Nuclear Leaks, a year-long Guardian investigation, has uncovered problems with cyber hacking, radioactive leaks and toxic workplace culture at Sellafield, the UK's most hazardous nuclear site.

It has also revealed how a small corner of the UK has an outsized influence on its special relationship with the US, with the countries bound by the shared history of nuclear weapons development. Britain's neighbours in Europe, particularly Norway and Ireland, also keep a sharp eye on the site, from where previous pollution incidents and radioactivity as a result of a fire have made it to their shores.