Two Chinese researchers were charged with smuggling a fungus classified “as a potential agroterrorism weapon” that could decimate crops and impact human health into the US last summer in a wad of tissues,

U.S. authorities said Monday that they had arrested a Chinese researcher accused of smuggling biological material into the country, the second such case in days.

Ag experts say crop fungus smuggled into US by Chinese researchers would be ineffective as ag terrorism weapon.