Every year, 15 million children starve to death. The World Health Organization estimates that 1/3 of the world's population is starving. One out of every eight children under the age of 12 -- in the United States -- goes to bed hungry every night. "It is estimated that some 800 million people in the world suffer from hunger and malnutrition, about 100 times as many as those who actually die from it each year."
I'd say we've already reached critical mass. Wouldn't you?