~RS~q~RS~~RS~z~RS~12~RS~)
Northern Ireland
A 21-year-old man has been arrested by police on suspicion of dissident republican activity.
He was arrested in north Belfast on Friday by detectives from the PSNI's serious crime branch.
The man has been taken to Antrim for questioning.
The arrest follows the discovery of a horizontal type mortar device in Jamaica Street in Ardoyne on Thursday.
Gove proposes split in exams system
Secretary of State for Education Michael Gove says its time for England, Wales and Northern Ireland to go their separate ways on GCSEs and A-levels.
Smarter future
University looks into life-enhancing communications technologies.
Food swappers
The people who trade garlic for ice cream
Unlocking secrets
Swiss banks creak under pressure to end trademark secrecy
A leaf from nature's book
Cities rely on systems which pollute our world, but that will all change in the future, writes Rachel Armstrong
Click
David Reid visits Cern to find out about the plans to restore the world's first web page
BBC © 2013 The BBC is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.
Search for US tornado survivors