American Sirens author Kevin Hazzard tells the story of a community group in a Black neighborhood in Pittsburgh who helped spark a revolution in emergency medicine. As recently as the 1960s, anyone suffering a heart attack or serious injury who called for help might get a response from the police or funeral home employees in a hearse. They could get the patient to a hospital, but couldn't perform CPR or other treatment on the scene. Freedom House trained some of the nation's first paramedics. Critic at-large John Powers shares a list of things he wish he had reviewed in 2022.