What Airport Agents Found in This Traveler’s Bag Could Wreck U.S. Farms

A seemingly routine trip through Detroit Metro Airport took a sharp turn when federal agents uncovered something alarming in a traveler’s luggage—something that could have jeopardized America’s food supply.

The BBC reported that authorities say Zunyong Liu flew into the United States from China carrying Fusarium graminearum, a crop-destroying fungus responsible for Fusarium head blight, a disease that plagues staple grains like wheat, barley, and rice. 

Liu told officials he brought the fungus to study with his girlfriend...