no political savy in any country can fight hooliganism.Hooliganism has no boundaries, taboo subject or slogans, no moral limits of acceptable and despicable behaviour.
If somebody has unspeakable dirty campaign on the ground, do you expected Meles to follow them to the mad? No. He waits for them at the price. These hooligans don't care about anything else in the country except for power through a coup in Addis. Thats where you intercept hooligans.