“Without Twitter, the explosive growth of Isis over the last few years into the most-feared terrorist group in the world would not have been possible,” a complaint has claimed. File photograph: Chris Ratcliffe/Bloomberg

The widow of an American killed in a shooting attack at a Jordanian police training centre has sued Twitter Inc, blaming the social media company for (...)

Martin Shkreli leaves the courthouse after his arraignment in New York, Thursday.

Martin Shkreli, the former hedge fund manager vilified across America for buying a pharmaceutical company and increasing the price of a life-saving dr(...)

Eric Feight (55), of Hudson, New York state, pleaded guilty in January to a federal charge of providing material support to terrorists in a plot intended to harm  US president Barack Obama (above). File photograph: Carlos Barria/Reuters

An upstate New York man was sentenced to more than eight years in prison for his role in a plot to build a radiation-emitting “death ray” intended to (...)

An Australian court has ordered Nurofen’s UK owner to stop selling several versions of the popular painkiller that were identical to its standard ibuprofen pills but nearly twice as expensive.

An Australian court has ordered Nurofen’s UK owner to stop selling several versions of the popular painkiller that were identical to its standard ibup(...)

Outgoing Argentina president Cristina Kirchner delivers a speech to supporters in front of Casa Rosada presidential residence in Buenos Aires. Photograph: EPA

Tens of thousands of supporters filled Argentina’s most famous square to say goodbye to president Cristina Kirchner, who lauded her government’s achie(...)

Traders are pictured at their desks in front of the DAX board at the stock exchange in Frankfurt, Germany. Photograph: Reuters

European shares hit fresh three-month highs yesterday, rising in thin trade as expectations grew for aggressive European Central Bank (ECB) (...)

Kian Egan from Westlife: the CIA techniques were probably very successful. Photograph: Brenda Fitzsimons

One of the most infamous torture programmes devised by the CIA post-9/11 used a Westlife single to assault the senses of terror suspects. Now the Amer(...)

Former Anglo Irish Bank chief executive David Drumm remains in custody on Sunday after being arrested by the US authorities on Saturday ahead of an extradition hearing in a Boston court on Tuesday.

Former Anglo Irish Bank chief executive David Drumm remains in custody on Sunday after being arrested by the US authorities on Saturday ahead of an ex(...)

Kim Davis addresses the media just before the doors are opened to the Rowan County Clerk’s Office in Morehead, Kentucky, Chris Tilley/Files

Pope Francis met secretly in Washington last week with Kim Davis, the county clerk in Kentucky who defied a court order to issue marriage licences to (...)

A single rhino horn can sell for more than $500,000 in the Far East, according to the US Fish & Wildlife Service.  Photograph: Nuda Ngwenya/Reuters

An Irishman has come before a court in the US in connection with his alleged role in trafficking illegal black rhino-horns. Patrick Sheridan was arres(...)