The anti-drug warriors may be richer, but they still face a Sisyphean task on the Andean hillsides.

ECONOMIST: The drug war

As I have often reported, tracing botnets to their masters is difficult at best and can be a Sisyphean task.

FORBES: Is Your Computer Enslaved to a Spammer?

It is worth remembering that overcoming the European debt crisis has been a Sisyphean task for more than 18 months.

FORBES: Baby Steps From Italy, Greece Keep Rally Going

Yet the task of quashing rumours is a Sisyphean one.

ECONOMIST: The power of microblogs