Professor Veronesi's research over the past decade has provided strong evidence that only a handful of spreading cancers will be missed if sentinel node biopsy is carried out instead of the full node removal.

BBC: 'One stop shop' for cancer

Professor Roy Harrison, a member of two UK government advisory committees on air pollution, said US research had provided strong evidence that fine particles contained in emissions from vehicles and industry caused cancer.

BBC: Traffic

Strong words were exchanged on Thursday in a joint committee meeting where the health and justice ministers provided evidence on the Donagh child sex abuse case.

BBC: Unison warns Donagh rows causing evidence difficulties