Given Japan's fascination with gadgets, perhaps it's no surprise that the country is turning to technology for help with one of its most vexing problems: an aging population.
One of the world's oldest scientific societies has weighed in on one of the planet's most vexing future challenges: How to support a growing human population without undermining ecological and economic systems.
Still, Rahabi has been one of the most vexing detainees the Obama administration has held since it inherited him, and the rest of the facility's population, in 2009.
It all brings them back to their most vexing problem.
The price of gas might be the most vexing problem.
But the most vexing issue is Kurdish autonomy.
But the United States is still the most vexing market for Nokia.
It has been one of the most vexing questions facing the food world.
Where Benedict falls on the line is the most vexing open question of his papacy.
Gasol is the Lakers' most vexing issue and his play is perplexing.
