US & Canada
CIA 'searched US Senate computers'
The head of the US Senate intelligence committee accuses the CIA of improperly accessing computers used by congressional staff amid an investigation.
US death row man free after 25 years
A man who spent more than 25 years on death row in the US state of Louisiana walks free from prison after his 1988 murder conviction is overturned.
Second win for Alaska dog sled racer
Dallas Seavey wins the Iditarod, the 1,000 mile (1,600km) annual sled dog race across the US state of Alaska, for the second time.
'No border' in an independent Quebec
Ahead of April's election, separatist Quebec Premier Pauline Marois says an independent Quebec would have no borders or tolls for Canadians.
Obamacare sign-ups reach 4.2 million
About 4.2 million Americans have signed up for private health insurance through marketplaces set up by President Obama's health law, officials say.
GM recall faces US investigation
A US congressional committee says it is investigating General Motors' recall of nearly 1.6 million vehicles over faulty ignition switches.
US child porn teacher sentenced
A former US teacher who hid a camera in an air freshener to secretly record children is sentenced to 25 years in prison for child pornography.
Men's Wearhouse to buy Jos A Bank
Men's Wearhouse agrees to buy rival Jos A Bank for $1.8bn (£1.1bn) ending a takeover battle between the two rivals that had lasted for months.
Obama appears on spoof chat show
US President Barack Obama is interviewed by comedian Zach Galifianakis for spoof chat show Between Two Ferns, following in the footsteps of Justin Bieber and Bradley Cooper.
Colorado reaps $2m in marijuana tax
The US state of Colorado says it collected more than $2m in the first round of tax payments from newly legalised marijuana businesses.
eBay halves chief executive's pay
E-commerce giant eBay cuts the total compensation of its chief executive, John Donahoe, by more than half.
Features & Analysis
The dark side of life in a US boomtown
Meet the New York model who dreams in code
Boston breaks through
Are robots and reading helping the city take on Silicon Valley?
By popular demand
Fans bring Veronica Mars back to the big screen
Has Russia anything to fear from US sanctions tool kit?
Snowden and Assange top billing at Texas tech festival