I've been a biology teacher for a decade, and I still can't decide if genetically modified crops are the solution to world hunger or a risk we shouldn't take. On one hand, GM crops like pest-resistant Bt cotton have increased yields by 20% in India since 2002, according to the International Service for the Acquisition of Agri-biotech Applications. But we don't fully understand the long-term ecological and health effects, and the rise of herbicide-resistant weeds suggests we're in an arms race with nature. So, should we embrace GMOs as a necessary tool for feeding 9 billion people by 2050, or is the precautionary principle the wiser path?