Purity First

Purity First is a radical anti-augmentation group in Deus Ex: Human Revolution.

History
In the book Deus Ex: Icarus Effect, Anna Kelso recalls that the group is responsible for several assaults and murders across the United States. They have similar intentions to the less extreme group, Humanity Front, though they accomplish their goals through violence, not (more or less) peacefully protesting.

Early in Human Revolution, they take over a Sarif Industries processing and assembly plant in Milwaukee. Adam Jensen is sent in to resolve the situation, and evetually finds Zeke Sanders, the group's leader. How the situation is resolved is up to the player.