‘The most thoughtful comment from any leading politician came from Kentucky senator Rand Paul, a libertarian Tea Party favourite who currently leads the field of potential Republican presidential hopefuls.’  Photograph:  Scott Olson/Getty Images

World View: Barack Obama cannot say anything about race relations for fear of making things worse, but Hillary Clinton has no s(...)

A US flag flies in front of the Brandenburg Gate, near the US embassy in Berlin. Germany’s expulsion of the CIA station chief in Berlin is close to a diplomatic nuclear option and is unprecedented in the postwar history of German-US relations. Photograph: Adam Berry/Getty Images

Whether they trust one another or not, Germany and the US will continue to share intelligence

Italy’s prime minister Matteo Renzi (l) shakes hands with European Council president Herman Van Rompuy as they arrive to commemorate the centenary of the start of the first World War, in Ypres. Photograph: Pascal Rossignol/Reuters

Opinion: As Italy takes on the EU presidency, its prime minister has rallied support for budgetary flexibility

Badge of honour: supporters of Hillary Clinton are preparing for a presidential run. Photograph: Astrid Riecken/MCT via Getty

With her bid for the US presidency in 2016 almost certain, it’s not surpising that Hillary Clinton isn’t dishing the dirt in her l(...)

Thomas Piketty: said it was unjust that homeowners with large mortgage debt should pay the same level of property tax as those who owned their homes outright. Photograph: Ed Alcock/the New York Times

Levy should take account of assets and mortgage debt, claims French economist

French connection: Thomas Piketty. Photograph: Ed Alcock/New York Times

Thomas Piketty’s theory of rising inequality has made him one of 2014’s best-selling authors. As the French economist prepares fo(...)

Jackie Kennedy

Few of Jacqueline Kennedy's letters have been published or sold at auction and fewer still have revealed much about her

Nato secretary general Anders Fogh Rasmussen addresses a news conference  in Brussels on Wednesday.

World View: Putin’s aggression has strengthened transatlantic alliance

Taoiseach Enda Kenny with US president Barack Obama on St Patrick’s Day 2012.  The annual chorus of outrage about the St Patrick’s Day ministerial exodus has been more muted than usual this year but that hasn’t stopped the Government adopting its traditional, defensive posture. Photograph: Alex Wong/Getty Images

St Patrick’s Day could offer a chance to listen to Irish communities abroad and learn from them

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