Joe Biden and Hillary Clinton:  Biden is talking to friends, family and donors about jumping in. The 72-year-old vice-president has been having meetings to explore the idea of taking on Clinton in Iowa and New Hampshire. Photograph: Luke Sharret/The New York Times

A pattern of cutting corners, a patina of entitlement and inevitability, has led to this. Destroying digital messages and thwarting official investiga(...)

Lonnie Bunch, director of the Smithsonian’s National Museum of African American History and Culture, which is scheduled to open in September 2016. Photograph: Simon Carswell

When the White House said, following the latest mass shooting in the United States, that president Barack Obama believed the Confederate flag “belongs(...)

Meet the musician behind the album of 2015 to date. His name is Kamasi Washington and the album is called The Epic. It’s epic by name and by nature(...)

Greek prime minister Alexis Tsipras: argues that Greece is now front-page news and has been presented in “a positive light”. Photograph: Kostas Baltas/Reuters

Greece will not implement reform measures beyond those agreed at an emergency summit earlier this month, prime minister Alexis Tsipras has said, amid(...)

Kurds protest outside the Turkish embassy in Paris. The Turkish military confirmed on Tuesday it had used jets to target Kurdish rebels. Photograph: EPA 1:21

Nato has said it stands in “strong solidarity” with Turkey following last week’s suicide bomb in Suruk, after Nato ambassadors met for an emergency me(...)

Easy eating: a  boy peers inside the skull of a Tyrannosaurus rex replica. Scientists believe serrated teeth let them chomp efficiently through the flesh and bones of large prey. Photograph: Maxi Jonas

If you want to know the secret behind the success of Tyrannosaurus rex and its meat-eating dinosaur cousins, look no further than their teeth. Scienti(...)

Members of the Kurdish community hold a rally outside the Turkish embassy to protest against the Turkish air force attacks on the PKK military campaigns. Photograph: Ian Langsdon/EPA 1:21

Nato gave Turkey its full political support in fighting militants in Syria and Iraq at an emergency meeting on Tuesday but several nations urged Ankar(...)

Protesters carry the coffin of Gunay Ozarslan, killed by Turkish police at an anti-terror operation, in Istanbul,  yesterday. Photograph: Sedat Suna/EPA

Today’s emergency meeting of Nato ambassadors in Brussels has focused minds on the increasingly complex geopolitical situation unfolding on the border(...)

Northern Secretary Theresa Villiers flies to Washington today to update politicians and prominent Irish-Americans. Photograph: Dominic Lipinski/PA Wire.

The public relations battle over who is chiefly responsible for the political deadlock caused by the welfare reform dispute has crossed the Atlantic(...)

Images of Barack Obama and Ethiopian prime minister Hailemariam Desalegn outside the National Palace in Addis Ababa. Photograph: Saul Loeb/AFP/Getty Images

US president Barack Obama told Ethiopia’s leaders on Monday that allowing more political freedoms would strengthen the African nation, which had alre(...)