The difference between an aircraft used as a delivery method and an
automobile is the aircraft's ability to easily circumvent the traffic
barricades that have been erected since the Oklahoma bombing.

.... but its payload carrying capacity is quite limited. Little good to circumbent the traffic barricades to deliver a firecracker.

OTOH, a truck and a catapult could do the trick just as well. Why not be proactive and ban catapults. (and dogapults too while we're at it.

Jose
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for Email, make the obvious change in the address