The North withholds just tomatoes and rice and everybody is shouting, panicking and wailing... Now imagine when the North decides to withold Yam, carrot, beans,pepper, onions, cows etc... Most people will begin to look malnourished when that time comes. Some sexy girls will start looking funny. Kwashiorkor tales will loom! . . Calamity begins when one region begins to feel they are superior to the other in terms of resources. We all need each other jare...

Recheck the meaning of withhold. You can not withhold what you don't have. Tomatoes and Rice are scarce these days hence they are very costly even in the north when compared to the time past. Because of some factors, they are not available and so can not be said to have been withheld by anyone.