Editor's note

When Muhammadu Buhari was re-elected as president of Nigeria last week, the stock market in Lagos took an immediate nosedive. Buhari’s main opponent, Atiku Abubakar, who is weighing up launching a legal challenge against the results, had been favoured by international investors. So what does Buhari’s second term mean for Africa’s largest economy? Iwa Salami looks at Buhari’s economic form - and his priorities.

The United States has been at war in Afghanistan since 9/11. The attack was planned by Osama bin Laden on Afghan soil with the protection of the Taliban. Now the U.S. is involved in peace negotiations with the Taliban. Political scientist Abdulkader Sinno asks: How did we get to this point – and what will happen if the U.S. withdraws its troops?.

Gemma Ware

Society Editor

Top Stories

Muhammadu Buhari: staying put at Aso Rock. George Esiri/EPA

Nigeria: what Muhammadu Buhari’s re-election means for Africa’s biggest economy

Iwa Salami, University of East London

Investors favoured Muhammadu Buhari's opponent, Atiku Abubakar. So what are the Nigerian president's economic priorities?

When U.S. troops go home, ethnic militias will likely gain strength. REUTERS/Parwiz

What will come after a US withdrawal from Afghanistan?

Abdulkader Sinno, Indiana University

The US has been at war in Afghanistan since a few weeks after 9/11. Now we are negotiating a peace with the Taliban, the same insurgents who sheltered Osama bin Laden.

Arts + Culture

World’s oldest tattooist’s toolkit found in Tonga contains implements made of human bone

Michelle Langley, Griffith University; Geoffrey Clark, Australian National University

Tattooing tools made and used 2,700 years ago include two blades made on human bone.

Books are delightful as they are – don’t fall in the trap of competitive reading

Sally O'Reilly, The Open University

Forget challenges, adults should be taking a leaf out of children's books when it comes to their reading habits.

Business + Economy

Regulations needed after cryptocurrency CEO takes passwords to his grave

Lisa Kramer, University of Toronto

The CEO of a Canadian cryptocurrency company died recently, and took his passwords with him, leaving his clients high and dry. The debacle illustrates again that cryptocurrencies should be regulated.

Should online users be bound by their privacy agreements?

Samuel Becher, Victoria University of Wellington

The European Union has enacted a systematic plan to give people more control over their personal data online. But despite these efforts, privacy agreements remain largely unreadable.