When the United States dropped nuclear bombs on Hiroshima and Nagasaki, a world ended for Margaret Mead. Suddenly, the world’s problems seemed more massive and immediate than ever before in human history. Mead turned her prodigious energies to these problems by working with dozens of organizations, many of them international and interfaith. As Mead’s circle of friends, colleagues, collaborators, and students expanded, in keeping with the expansive vision of liberal Protestantism at the midpoint of the twentieth century, her family ties frayed. Only her relationship with her daughter survived to 1950. Her relationship with Christianity hit a rough patch, too. Publicly, she spoke harshly of American churches. When asked to articulate what she believed, she did not mention God. Privately, though, a stream of spirituality still flowed, feeding her moral sensibility and forming a legacy to pass on to Catherine.