The Islamic State video appears to show the killing of a third Western hostage, aid worker David Haines, and ends with the warning that another British person will be next.
The “We’ve been lied to” argument goes only so far. Scepticism may be evidence of a healthy and independent mindset; but conspiracism is a virus that feeds off insecurity and bitterness.
There is currently no international law or body that can organise the detection and prevention of fake medicines - and it's a critical threat to our ability to fight deadly diseases.
The PM is not alone in failing to articulate a clear set of principles for this new era.
When it comes to public health, we're often afraid of the wrong things - and this can have truly nasty side-effects.
The cost of recent economic sanctions will be felt in the west, but it’s a cost we can – and should – withstand.
The downing of Flight MH17 in eastern Ukraine’s Donetsk region, was the deadliest aviation incident since the terrorist attacks of 9/11.
A New York Times article has suggests that European governments act as an "inadvertent underwriter for al-Qaeda". Should governments pay ransoms when their citizens are taken hostage?
It’s highly possible that the civilian airliner was mistaken for a Ukrainian Il-76 military transport plane.
Many of those on flight MH17 were experts in Aids research, flying to Kuala Lumpur to make a connecting flight for the 20th International Aids Conference in Melbourne, Australia.
What tips can David Cameron learn from the annual Twiplomacy report, which studies how world leaders use Twitter? He needs a little help – not only because he's regularly insulted online, but because Barack Obama won't follow him back.
The three Al Jazeera journalists sentenced to seven years in jail in an Egyptian court room today should never have been tried in the first place. And yet, the day before their verdict, the US government released £338m of military aid to Egypt's repressive new rulers.
The former UN human rights lawyer, and one of the Foreign Secretary's advisers on ending sexual violence in conflict, on how everyday sexism and rape in warfare are on the same continuum.
It used to be that extremists used Facebook and YouTube to post recruiting videos - but Isis and its fighters have become adept at using social media to show their side of war.
The recent summit in London has grabbed headlines, but whether we have now reached a turning point in the fight to end sexual violence in conflict remains to be seen.
“What I heard today scared the hell out of me”, one US senator said following the capture of Iraq's second city by the hardline jihadist group ISIS. So who are ISIS and how big a threat to they pose?
Worldwide, diabetes kills almost as many people a year as HIV/Aids, and the number of cases of Type 2 diabetes is set to increase by 50 per cent in the next decade. Why is so little being done to contain the epidemic?
This week's summit must not be the culmination of the government's efforts.
A new report from the London School of Economics lays out the case against the counter-productive decades-long attack on recreational drugs.
A new report from Amnesty International describes how domestic workers in Qatar face abuse and exploitation. The problem isn't just limited to Qatar, however: domestic workers in the UK are similarly vulnerable.
The benefits of slavery have accrued down the generations, so why are we so nervous about the responsibility for the slave trade doing the same?
France has introduced a new law to prevent employees being asked to read work emails outside office hours. Would it help solve the UK's productivity problem if we followed suit?
In France, 20,000 Roma live in extreme poverty with little or no access to basic services and face a constant risk of forced evictions.
Why is Labour not yet talking about responsible capitalism in a global context?
The UK is ranked 13 out of 132 countries in the new Social Progress Index, thanks to its excellent universities but comparatively high rates of obesity. But when will we realise that these lists are really meaningless?
The legislation outlawing FGM was introduced in 1985, but there were no prosecutions until last week. Why?
The EU is the world’s largest humanitarian donor, and it is facing a funding gap of almost half a billion euros.
To describe sexism, sexual harassment, and sexual violence as “women’s issues” side-lines and reduces them, neglects male victims and lets perpetrators off the hook. One in three women on the planet will be raped or beaten in her lifetime.
Despite their low official government salaries, at this week’s National People’s Congress annual meeting, there will be 86 renminbi billionaires and China’s richest politicians have quadrupled their wealth in the past eight years. But is there a right level to set politicians’ pay?
The first 24 hours in a baby's life are the most dangerous, but newborn deaths have been under-researched and neonatal care is under-funded.