Reies L pez Tijerina, one of the Four Horsemen of the Chicano Movement, led the land grant struggle by Hispanos in the 1960s to recover the lands granted to their ancestors by Spain and Mexico and then guaranteed by the Treaty of Guadalupe Hidalgo. In his struggle, Tijerina became the target of local and state law enforcement officials in New Mexico and the FBI nationwide. Jos Angel Guti rrez meticulously examines thousands of pages of FBI documents,...