Tom Kelley finds IDEO’s move to social innovation “so rewarding”. The firm has already built 23 schools based on design thinking as it changes education in Peru.

The past decade or so has seen the inexorable rise of design thinking as a guiding tenet in the business landscape, with the processes used by designe(...)

A pedestrian with his glasses fogged over walks through the snow during a winter blizzard in Cambridge, Massachusetts. Photograph: Brian Snyder/Reuters

Record-breaking cold gripped the Eastern United States on Monday as an icy winter storm crippled the nation’s central states before it was expected to(...)

Gay rights advocate Vin Testa in front of the Supreme Court in Washington. Photograph: J Scott Applewhite/AP

Gabriela Polanco says her 14-month-old daughter Alexandra Noemi is running around, eating with a fork and drinking out of “a big-girl cup”.Two years a(...)

The US Supreme Court is to decide whether same-sex couples have a right to marry under the country’s constitution.   Vin Testa, a supporter of same-sex marriage, waves a rainbow colored flag outside the US Supreme Court  in 2013.  Photograph: Andrew Harrer/Bloomberg

The US Supreme Court is to decide whether or not same-sex couples have a right to marry under the country’s constitution, setting up a potentially hi(...)

Charles Warner is seen in an undated picture from the Oklahoma Department of Corrections. Photograph: Oklahoma Department of Corrections/Reuters

With a renovated death chamber, new training and a higher dose of drugs, Oklahoma on Thursday carried out its first execution since April, when the sl(...)

A handout photograph of Christopher Cornell (20) of Cincinnati, Ohio. Cornell, who claimed sympathy with Islamic State militants was arrested and charged in connection with a plot to attack the US Capitol with guns and bombs. Photograph: Butler County Jail/Reuters

An Ohio man who had hoped to ally himself with the Islamic State has been arrested in connection with a planned attack on the Capitol building in Wash(...)

US Speaker of the House John Boehner. A former employee at Mr Boehner’s country club has been indicted on a charge of threatening to murder the politician. Photograph: Jonathan Ernst/Reuters

A former barman has been indicted on a charge of threatening to murder House of Representatives speaker John Boehner, by either poisoning his drink at(...)

A visitor passes ENOC-branded oil barrels stored at the Emirates National Oil   lubricants and grease manufacturing plant in Fujairah, United Arab Emirates. Photograph: Gabriela Maj/Bloomberg

Global oil prices extended their slide on Monday as Goldman Sachs lowered its short-term price outlook, while refineries in Ohio and Pennsylvania were(...)

 Maryland governor Martin O’Malley (left) with president Barack Obama. Mr O’Malley has cancelled death sentences for four prisoners. Photograph: Mandel Ngan/AFP/Getty Images.

A US governor has cancelled the death sentences of the last four inmates awaiting execution, almost two years after the state became the 18th to do a(...)

Ismaaiyl Brinsley (28) is seen in an undated picture provided by the New York Police Department on December 21, 2014. 1:32

The gunman who murdered two New York City police officers in their squad car had a long criminal record, a hatred of police and the government and an (...)