ScienceDaily (June 20, 2012)

 — Pests are adapting to genetically modified crops in unexpected ways, researchers have discovered. The findings underscore the importance of closely monitoring and countering pest resistance to biotech crops.

All that is necessary to ensure food for the world is a constant vigilance and expenditure against crop pests....

The problem is that our vigilant attitude costs  $,  whereas the vigilant attitude of the pests only requires them to eat our crops and reproduce.

From our own history, we know that eating and reproducing is an attitude shared  by those with $ and those without $. Hence, our battle is much harder and requires a long-term commitment and frame of mind to a goal which we have not demonstrated hitherto.
--