Terrorist groups don’t have formal rosters the way sports teams do. It is sort of like “former intelligence officer”. It is definitely a strong argument (stre

Terrorist groups don’t have formal rosters the way sports teams do. It is sort of like “former intelligence officer”. It is definitely a strong argument (strengthened by time and distance separation, degree of clear separation or renunciation, etc) but it would almost certainly cause delays and substantial extra investigation, if nothing else.