True. I remember thinking, when they were found near some of the bodies of water, that maybe they were poisoning the water or planning to release the water. Maybe they were spreading West Nile somehow.
It seems logical that getting contaminated insect eggs into the country would be much easier than smuggling insects. Getting vials of contaminated blood in would be even easier, then using the blood to feed the developing critters somehow. It probably wouldn't even require highly trained people, just "mix this with the eggs and drop it in the water".
With the flu season approaching, every sympathizer will be going to further extremes to discount every reported "unrelated" incident.