"I'd like to teach myself how to miss someone forever and love someone forever in a way that doesn't run me over each day anew," Rachel Goldberg-Polin writes in her new memoir, "When We See You Again." Her son, Hersh, was abducted by Hamas on Oct. 7, 2023 and executed after 328 days in captivity. In an extended 60 Minutes interview, Goldberg-Polin tells Anderson Cooper what she has learned from her grief. #israelgaza #grief #loss #mother