Patrick Ishmael at the Show-Me Institute has unearthed some shenanigans in the Aerotropolis legislation. Apparently the legislation has holes big enough to drive a truck or train through it. That is, its tax credits can be used for any activity that uses two modes of transport and air need not be one of them. The activity also wouldn't need to involve exports. For example, an auto manufacturer such as Emerald Auto (which is looking to produce delivery vans in Hazelwood) would be eligible for Aerotropolis credits if it used rail and truck transport.