Can someone tell me why this Anti-Virus script won't work? 

function Scan(Model)
	local Virus = 0
	for _,i in pairs (Model:GetChildren()) do
		if not i:IsA("Model") then
			if script.Database:FindFirstChild(i.Name) then
				if script.Database:FindFirstChild(i.Name).Value == i.className then
					i:Destroy()
					Virus = Virus + 1
					print("Viruses found: "..Virus)
				end
			end
		else
			Scan(i)
		end
	end
end

Scan(game.Workspace)

game.Workspace.ChildAdded:connect(function()
	Scan(game.Workspace)
end)
Anonymous