Users of public transport should report suspicious behaviour to help thwart terror attacks, a police chief says.
Is the world set to return to the 1980s?
From weed detecting to a robotic dairy - the tech that could help farmers be more efficient
A controversial debate in Arabic trends on Twitter
Two Moscow Africans and their love of Russia's president
The celebrity preacher and her mysterious disappearance
Professor Atul Gawande of Harvard University on why more effort needs to be made to improve the last stage in people's lives.
Unionists have strongly criticised the Sinn Féin leader Gerry Adams after he used offensive language at a public meeting in Enniskillen on Monday night.
Can a robot really tell us whether a dish is authentic?
A group of scientists in Bangkok have invented a machine to determine whether Thai food tastes authentic.
The brain has a weak spot for Alzheimer's disease and schizophrenia, according to experts who have pinpointed the region using scans.
Jim Murphy calls on his party to support the full devolution of income tax to Holyrood while his rivals are more cautious.
Business leaders say tax reform is needed for the North Sea oil sector after a survey suggests confidence has fallen sharply.
As part of the African Dream series, we profile an entrepreneur who turned his back on banking to set up a shoemaking company in Ghana.
Internet retailing giant Amazon is offering its online customers access to Royal Mail's Local Collect "click and collect" network.
Both the US and Iran say they are confident of reaching a deal over Tehran's nuclear programme despite the failure of the latest round of talks.
Michael Vaughan will offer his proposal for an FA Cup-style T20 competition to the ECB after a report into falling numbers.
A tax scandal debate on European Commission chief Jean Claude Juncker is struggling to gain traction in the European Parliament.
The deadline for a nuclear deal with Iran has been extended to the end of June after talks in Vienna failed to reach a comprehensive agreement.
A report into the killing of Fusilier Lee Rigby is set to criticise MI5 over its monitoring of one of the killers, but will add that the security service could not have prevented his death, the BBC understands.