amental ism ▁ ▁H ind ut va ▁ ▁Islam ic ▁extrem ism ▁ ▁K ah an ism ▁ ▁Political ▁extrem ism ▁in ▁Japan ▁ ▁S ikh ▁extrem ism ▁ ▁T error ism ▁Christian ▁terror ism ▁ ▁V ig il ant ism ▁Relig ious ▁per sec ution ▁ ▁Vi ol ent ▁extrem ism ▁ ▁References ▁ ▁C ited ▁publications ▁▁ ▁George , ▁John ▁and ▁La ird ▁Wil co x . ▁Naz is , ▁Commun ists , ▁Kl ans men , ▁and ▁O thers ▁on ▁the ▁Fr inge : ▁Political ▁Ext rem ism ▁in ▁America ▁  Prom ethe us ▁Books , ▁ 1 9 9 2 . ▁() ▁ ▁H imm el stein , ▁Jer ome ▁L . ▁All ▁But ▁S leep ing ▁with ▁the ▁En emy : ▁Stud ying ▁the ▁Rad ical ▁Right ▁Up ▁Close ▁  AS A , ▁San ▁Francisco : ▁ 1 9 8 8 ▁ ▁Hof fer , ▁Eric . ▁The ▁True ▁Bel ie ver : ▁Th ought s ▁on ▁the ▁Nature ▁of ▁Mass ▁Mov ements . ▁Vari ous ▁ed itions , ▁first ▁published ▁ 1 9 5 1 . ▁ ▁Schles inger , ▁Arthur . ▁The ▁V ital ▁Center : ▁The ▁Polit ics ▁of ▁Fre edom . ▁Vari ous ▁ed itions , ▁first ▁published ▁ 1 9 4 9 . ▁ ▁Wil co x , ▁La ird . ▁" What ▁Is ▁Political ▁Ext rem ism ", ▁retrieved ▁from ▁The ▁Vol unt ary ist ▁news letter ▁# 2 7 , ▁ 1 9 8 7 ▁ ▁Further ▁reading ▁▁ ▁N aw