Githae /Njiraini are on the right path regarding taxation.
Once they set an enabling environment for collection of idle land tax, probably after enacting the land commissions, this will result in flooding of land for sale hence reduction of land prices.
People will now opt to buy land and construct as opposed to renting. This will cause a surge in employment within the construction sector hence reduction of crime rate,poverty, unemployment,landlessness e.t.c
This, coupled with Turkana Oil is the solution for Kenya's economy.
As Iron Sharpens Iron, So one Man Sharpens Another.