Simple! Our currency business is like this; You take the USD out to china and elsewhere, you buy toys and the likes. You bring them back for sale, you get back the TZS. Next week again you buy the USD off to china and the cycle goes on, meanwhile you sell nothing to bring in the USD. The exercise simply drains the USD without replenishment.
You have been filling in the gap by injecting in some USD from big brothers, donors, but this time they are saying to you, 'go to hell' tingatinga way. what do you expect?
Ok, you may have accrued something from the mining companies but the norm is that they are not tax payers. Only pay something to politicians and relax. where can you go? Tourism may be, but here is Ebola. With our stupidity integrated with our planning, it is unfortunate that we couldn't properly arrange for proper feeding of the tourism industry where more than 60% of expenditure are destined for air travel and hotels. How comes that we don't have a working national carrier while depending on tourism as the largest forex attractant? Stupidity among higher politician who have turned out to be planners of everything.