To make matters worse, bioterrorism events targeting the food supply are both “low-cost” and “low-tech,” says Lynn Klotz, senior fellow at the Center for Arms Control and Non-Proliferation, because, unlike with human pathogens like anthrax or smallpox, sinister actors can cultivate and transport the fungi or viruses without having to go to extreme lengths to protect themselves. Although coffee production is spread out across the world, two-thirds of it comes from just four countries, so a coordinated attack could have profound global implications.