During the COVID-19 pandemic, countries closed their borders and restricted trade, meaning that risks are growing in the world's complex food supply networks. The global crisis is challenging the security and effectiveness of food supplies globally and locally. Prof. Kelly D. Brownell, director of the World Food Policy Center at Duke University, along with Fan Shenggen, chair professor at China Agriculture University, discuss a potential food crisis during "COVID-19 Fronline" at CGTN.