Senator Ron Wyden, a Democrat from Oregon, said tax inversion deals were latest ‘virus’ in US tax system. Photographer: Victor J. Blue/Bloomberg

The US Congress must pass legislation to prevent American companies relocating their legal headquarters overseas and stop rewarding countries that pra(...)

Covidien’s strengths in surgical equipment , vascular and ventilators will complement Medtronic’s existing product range. Photograph: Munshi Ahmed/Bloomberg

It’s the largest deal in medical devices in almost 30 years. More importantly, Medtronic’s $42.9 billion proposed acquisition of rival Covidien makes (...)

When US National Security Agency director general Keith Alexander was asked a year ago if the Bluffdale centre would hold the data of Americans, he replied no: “We don’t hold data on US citizens.” Photograph: Jason Reed/Reuters

At the Husband and Wife lingerie store in Bluffdale, Utah, in Mormon country – where babies are welcome amid the sex toys and the motto is “Classy, ta(...)

The National Security Agency campus in Fort Meade, Maryland. The agency has secretly circumvented or cracked much of the digital scrambling that protects global commerce, e-mails, phone calls, medical records and web searches, according to newly disclosed documents. Photograph: Government handout via The New York Times

The National Security Agency routinely violated court-ordered privacy protections between 2006 and 2009 by examining phone numbers without sufficient (...)

A satellite dish is seen in the former monitoring base of the National Security Agency  in Bad Aibling, south of Munich. Photograph: Reuters

The National Security Agency may have unintentionally collected as many as 56,000 emails of Americans per year between 2008 and 2011 in a programme th(...)

The sanction is the latest of a series of scandals for Barclays  that include a $450 million fine by US and UK regulators for rigging global benchmark interest rates last year.

Barclays will contest a record $453 million fine imposed by a US energy regulator against the British bank and four of its power traders, setting up a(...)

 President Barack Obama at the White House yesterday with departing national security adviser Tom Donilon,  incoming national security adviser Susan Rice (centre) and  Samantha Power, the new US ambassador to the UN.  Photograph: Alex Wong/Getty Images

The Obama administration has acknowledged that it is collecting a massive amount of telephone records from at least one carrier, reopening the debate (...)