[kevkrom]

What about the crime it would cause? Looting, robberies and underground economy?

There is no such thing as a tax system that doesn't have people avoiding it. Using "black market" or "avoidance" as a reason to opoose a particular mechanism doesn't wash, because the same criticisms can be levied against any other system you compare it to.

[Echo Talon]

flat tax. people aren't getting hammered by going to the store to purchase their items. No need for the black market.