Question though....If you hurl a rat or squirel at someone with a slingshot, is that weaponized Bubonic or Junta? If I just take it to a gradeschool for the kids to show and tell, is that the non-weaponized form or the weaponized form?
Homeland Security has dispatched a security team to assess the situation.
It is true that they could easily infect rodents and release them into a populated area hoping to start an epidemic. But that would depend on the fleas multiplying enough to get into lots of homes.
The key to preventing this would be rodent and flea eradication.
Keep your home flea and rodent-free, and you're unlikely to have a problem.
And consider buying stock in "RAID" and other flea killers if you think they will try this.