Cambodia's high-profile crackdown on scam operations this year triggered a mass exodus from compounds around the country.However, a new report by Amnesty International has cast doubt on its impact on the illicit industry with the NGO saying authorities had failed to properly dismantle the "vast majority" of scam sites in the country.It said the government had also failed to identify and support thousands of trafficking survivors subjected to "torture and slavery"."More than 70 per cent of the compounds identified by Amnesty appear to have been bypassed by the crackdown, while ineffective police interventions at other compounds have missed victims and…