But the letter makes no mention of deeper divisions over Europe's future course.

BBC: Merkel and Sarkozy want EU to ban high-risk trading

It is not just taking on extra work that has led to worker stress but another deeper problem: employees who no longer love their companies but want to.

FORBES: Balancing Workplace Loyalty And All That Stress

After 1940 there was no more politics, but instead a deeper humanist component: the anger of Captain Haddock upon discovering modern-day slavery, the defence of gypsies accused of having stolen an emerald.

ECONOMIST: Responding to Hamas

Such deeper integration could mean Facebook is no longer a stand-alone mobile app but part of the operating system's building blocks.

NPR: Eyes On Facebook Mobile Event As Company Evolves

But, in a system which was sinking deeper under pressure, their best was never going to be enough, no matter how hard they tried.

BBC: Death on the Wards revisited