Amnesty offers cause internal dissension that extends well beyond the individuals who accept an exit. “Supergrasses” in Northern Ireland, recruited to inform on compatriots in return for personal amnesties and other rewards, were a major factor in unraveling the republican movement.42 Internal informers are particularly devastating to groups that have organized into cells and are difficult to track otherwise.43 But apart from their intelligence value, the specter of betrayal can lead to fratricide.
