I'll go way out on a limb and hypothesize; say for purpose of discussion, he does.
The simple dispersal of two dozen individual terrorists spreading substances by hand is cheapest, as stated here.
Say there is a demonstrable advantage to using UAVs; problems and solutions.
Infiltration of 1) personnel; 2) aircraft; biochem agents.
The personnel are here. The aircraft are here. The biochem agents are easily brought.
John Doe gave a box of Cracker Jack to a woman with a baby at an airport; the lady boarded a plane with an ounce of coke.
Twenty-eight-point-four grams; retail.
For wholesale, Barry Seal's younger, smarter brother.
Surely any thought of "sealing borders" is moot in view of the tons of coke entering CONUS from labs in Colombia.
Thanks to NAFTA thousands of vehicles enter each day, most unsearched.
The sea of COSCO containers at San Diego is repeated at all major ports; very, very few are searched.
RC planes are larger and more reliable.
Guidance systems for private planes are fascinating.
My friend flew his wife from Santa Fe to North Carolina and showed me his software on his laptop.
He loaded it and ran some simulations.
It took him from point to point, observing the radii of restricted airspaces.
The use of small planes would enable larger payloads.
North's Project Donation provided a constant supply of aircraft for Contras.
Hopefully Islamist networks are being tracked and taken down, eliminating funding and operatives who would enact aircraft acquisition.
Monday next our Spirits should put lots of fire on the hive, and the drones far from the nest will either act or go down.
It's not comforting that Castro has been in contact with Iraqi biochem personnel, or that Chavez is close to Papa.
Also not comforting is possible Iraqi possession of Biopreparat's Newcomer nerve agent.
The FBI, emasculated by traitorrapist42 and Freeh, is tangled up in PC, holding sensitivity sessions and loathe to count mosques--count, let alone surveil with a vengeance and every humint, sigint and electronic method available.
Watch the Smoocher of Suha; when it goes to ground, a domestic attack is nigh.
Otherwise, the Bush Binary System will suppress the use of UAVs:
1) Use of such will bring a nuclear response;
2) A preemptive attack on the hive is on the horizon.