An obscure federal commission created by the U.S. Congress issued a report in May suggesting that genetically engineered crops (often referred to as genetically modified organisms or GMOs) could become a new battlefront with China and not in the commercial sense. The U.S.-China Economic and Security Review Commission wrote in a staff research report that "Beijing could easily hack the code or DNA of U.S. GM [genetically modified] seeds and conduct biowarfare by creating some type of blight that could destroy U.S. crops."
The report said that while GMO crops are designed to resist naturally occurring crop diseases, the Chinese could create a genetically engineered fungus or other disease that targets the type of crops grown widely in the United States.
The writer of the report understands precisely why such an attack might work:
[A] virus or fungus engineered to kill a GM plant could wipe out an entire crop with no genetic variation to mitigate the losses. In a natural crop, a variety of DNA traits in the field could mitigate some losses and ensure some of the plants survive the viral or fungal infection.