Terror is best studied as one repertoire within regimes, not sui generis

Evidence

In short, locate terror in relation to regimes and repertoires, as an aspect of collective violence. The horrors of September 11 should not blind us to systematic variation in the character and origins of terror. — Charles Tilly, Regimes and Repertoires, 889

Categorization

• XREF: Tilly folds terror back into his regime-repertoire matrix rather than treating it as exceptional — the move the reader needs to test whether institutional absorption can absorb terror too. — connects to: Terror is a strategy of asymmetric violence deployable by weak or strong actors — Charles Tilly, Regimes and Repertoires, 828; Exhaustive enumeration reveals contention falls into a limited set of recurring forms
• recurring: this claim recurs 2 times within its source