While American Spies was written prior to Donald Trump winning the 2016 presidential election, it has become vital and relevant under the new Republican administration.
Jennifer Stisa Granick is one of the premiere legal minds currently trying to grok the intersection between surveillance, privacy, and public policy. She serves as the Director of Civil Liberties at the Stanford Center for Internet and Society. Before that, she worked at the Electronic Frontier Foundation.
In her book, Granick presents an expansive overview of the national-security legal landscape. However, despite being geared largely toward attorneys and academics, American Spies can be easily understood by anyone with even a passing familiarity with touchstone concepts that have graced the pages of Ars Technica in recent years, including Edward Snowden, Section 702, and Executive Order 12333.
https://arstechnica.com/tech-policy/2017/02/american-spies-how-we-got-to-age-of-mass-surveillance-without-even-trying/