"Domestic terrorism" is a phrase that has had its fair share of US headlines in the years since 2001 and the Al Qaeda terror attacks. We've all read reports of bombings, mail attacks using fire, biological weapons. And the dramatic death tolls from dozens and dozens of mass shootings.
But domestic terrorism was not hatched in the wake of foreign attacks. It predates online radicalization and the US wars in the Middle East and South Asia.
In fact, a series of domestic bombings, and other actions of radical underground groups were all too common during the 1970s. Those “Days of Rage” and the FBI’s response to them are the subject of Bryan Burrough’s investigation into and retelling a decade of America’s  experience of domestic terrorism, which he published in the 2015 book, Days of Rage: America's Radical Underground, the FBI and the Forgotten Age of Revolutionary Violence.