In a Nature Astronomy Letter, Yu Qiu (KIAA Fellow/Georgia Tech), Tamara Bogdanović (Georgia Tech), Yuan Li (UC Berkeley), Michael McDonald (MIT), and Brian R. McNamara (U Waterloo) report on the formation mechanism of dusty, cold filaments in cool-core clusters based on radiation-hydrodynamic simulations of AGN feedback, shedding light on how supermassive black holes interact with the intracluster medium.