I agree we should all grow more of our food however with so many people living in cities and large towns, most people in the developed world do not have access to a garden, although in the UK you can rent an allotment and grow some vege there.
The best thing is how much better it tastes when you pick it and eat it still warm from the suns rays. Yum!
Supermarket food is in my opinion no where near as good and i know exactly what is in my food.

World food crisis, yet the US PAYS American farmers NOT TO FARM.

They want to keep food prices high; and yet they say they do it so the market doesn't get oversaturated. Why? Because that would make food prices go down and the big corporations wouldn't have their monopoly on food, then we could send the excess food to nations that need it.

Its all do to greed