News According to reports, federal prosecutors will seek the death penalty against Boston Marathon bombing suspect Dzhokhar Tsarnaev

The twin blasts killed three people and wounded more than 260 others at the end of the city's marathon in April 2013

Mortensen: he was the principal designer of an economic tool called 'search theory'

Dale Mortensen: Economist who shared the Nobel Prize for his work on analysing unemployment and labour markets

Dale Mortensen shared the 2010 Nobel Prize in Economics for developing innovative methods to analyse unemployment and labour markets. He started out by wanting to know why some people remained unemployed when businesses had jobs they could not fill, and he wondered why similar jobs could have significantly different salaries.

The late Sam Berns (centre) with his parents Scott Berns and Leslie Gordon at the 18th Annual Nantucket Film Festival in June 2013.

Sam Berns: Funeral held for inspirational teenager with an ageing disorder

Well-wishers queued outside to pay their respects at the temple where the 17-year-old was laid to rest

New England Patriots quarterback Tom Brady

NFL Divisional Playoff: Indianapolis Colts v New England Patriots match preview

A look ahead to this weekend’s Divisional Playoff match at Gillette Stadium in New England

Mitt Romney has accepted Melissa Harris-Perry's apology after panelists on her US programme made fun of his African-American grandson

Mitt Romney accepts Melissa Harris-Perry's apology but says 'children are beyond the line'

The former Republican said his family is moving on after panelists made jokes about his African American grandson

President Barack Obama, with Michelle Obama, listens to women's concerns about the Affordable Care Act, known as 'Obamacare'

Is the tide finally turning for Obamacare? After a slow start, the President’s signature policy must sink or swim in the new year

After early technical issues that gave ammunition to right-wing critics, enrollments for the medical insurance have surged in December - but will it continue?

Yusef Lateef: Musician

Jazz composer and saxophonist who worked with Dizzy Gillespie and whose playing influenced John Coltrane

The photo that the mother of a suicide victim sends along with his ashes to strangers so her thrill-seeking son can fulfill his dream of travelling the world

Facebook gives mother of US Air Force thrill-seeker CJ Twomey one final adventure in ashes scattering

Hundreds of strangers on Facebook have helped Hallie Twomey with her mission

Michael and Martin Gray have had their picture taken together with Father Christmas annually for 30 years

Two brothers get photo taken with Santa every Christmas for 30 years

Michael and Martin have had their picture taken with Father Christmas every year since 1980, now they are getting their children in on the act

Mass killings traumatise young elephants

A recent study has drawn links between mass culls or poaching of elephant herds and elephant psychological trauma

More than 50,000 people in the UK look at or download images of underage sex each year

NYPD arrest 35-year-old son of notorious Genovese mafia family mobster Arthur Nigro on child porn charges in New York

Joseph Nigro was detained by officers investigating file sharing network

Margaret Hodge slams Serco after it pulls out of GP cover contract

Group ‘good at bidding but not  at delivery’ says PAC chairman Margaret Hodge

David Oliver reportedly branded Kanye West 'as misguided as they come' in his open letter
Lin Ya-ting, a 23-year-old woman from Taiwan displays a rare ability of twisting her tongue into a flower shape

Can you conquer the hardest tongue twister ever created?

Psychologists say their nonsensical phrase left volunteers completely baffled, with very few able to say it 10 times

The Bay Psalms Book sold for $14.2 million at a Sotheby's New York auction last night

Bay Psalm Book sold for world record $14.2m at auction

The work has become the most expensive printed book in the world

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A History of the First World War in 100 Moments: Peace without magnanimity - the summit in a railway siding that ended the fighting

A History of the First World War in 100 Moments

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Scottish independence: How the Commonwealth Games could swing the vote

Scottish independence: How the Commonwealth Games could swing the vote

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Out in the cold: A writer spends a night on the streets and hears the stories of the homeless

A writer spends a night on the streets

Rough sleepers - the homeless, the destitute and the drunk - exist in every city. Will Nicoll meets those whose luck has run out
Striking new stations, high-speed links and (whisper it) better services - the UK's railways are entering a new golden age

UK's railways are entering a new golden age

New stations are opening across the country and our railways appear to be entering an era not seen in Britain since the early 1950s
Conchita Wurst becomes a 'bride' on the Paris catwalk - and proves there is life after Eurovision

Conchita becomes a 'bride' on Paris catwalk

Alexander Fury salutes the Eurovision Song Contest winner's latest triumph
Pétanque World Championship in Marseilles hit by

Pétanque 'world cup' hit by death threats

This year's most acrimonious sporting event took place in France, not Brazil. How did pétanque get so passionate?
Whelks are healthy, versatile and sustainable - so why did we stop eating them in the UK?

Why did we stop eating whelks?

Whelks were the Victorian equivalent of the donor kebab and our stocks are abundant. So why do we now export them all to the Far East?
10 best women's sunglasses

In the shade: 10 best women's sunglasses

From luxury bespoke eyewear to fun festival sunnies, we round up the shades to be seen in this summer
Germany vs Argentina World Cup 2014: Lionel Messi? Javier Mascherano is key for Argentina...

World Cup final: Messi? Mascherano is key for Argentina...

No 10 is always centre of attention but Barça team-mate is just as crucial to finalists’ hopes
Siobhan-Marie O’Connor: Swimmer knows she needs Glasgow joy on road to Rio

Siobhan-Marie O’Connor: Swimmer needs Glasgow joy on road to Rio

18-year-old says this month’s Commonwealth Games are a key staging post in her career before time slips away
The true Gaza back-story that the Israelis aren’t telling this week

The true Gaza back-story that the Israelis aren’t telling this week

A future Palestine state will have no borders and be an enclave within Israel, surrounded on all sides by Israeli-held territory, says Robert Fisk
A History of the First World War in 100 Moments: The German people demand an end to the fighting

A History of the First World War in 100 Moments

The German people demand an end to the fighting
New play by Oscar Wilde's grandson reveals what the Irish wit said at his trials

New play reveals what Oscar Wilde said at trials

For a century, what Wilde actually said at his trials was a mystery. But the recent discovery of shorthand notes changed that. Now his grandson Merlin Holland has turned them into a play
Can scientists save the world's sea life from

Can scientists save our sea life?

By the end of the century, the only living things left in our oceans could be plankton and jellyfish. Alex Renton meets the scientists who are trying to turn the tide
Richard III, Trafalgar Studios, review: Martin Freeman gives highly intelligent performance

Richard III review

Martin Freeman’s psychotic monarch is big on mockery but wanting in malice