This is an eye-opening look at how religion functions in American history, showing how "religious freedom" depends strongly on who gets to be called religious. If your religion looks too different from Protestant Christianity, as the religion of the Pueblo people did, then the nation's commitment to religious freedom does not apply. Wenger describes how this worked, but also how the Pueblo fought for their practices to be recognized as religious.
For a people who did not have a separate notion of religion separate from other spheres of public and private life, this decision to describe their customs as religious carried not just the promise of legal protection and the hope of ending Protestant interference with their sacred rites, but also the end of a kind of social cohesion. If their customs, previously mandatory for all members of the community, were "religious" in some way recognizable to the American government, then participation could not be mandated; the Pueblo too must allow religious freedom, even if that meant fraying the fabric of their community.
Wenger unpacks all of this with skill. The book is well written, easy to follow, and enlightening. Well worth reading for anyone interested in American history and the questions surrounding religious freedom.