The Internal Security Department says the 19-year-old was radicalised by a blend of pro-Hamas, anti-LGBTQ, anti-Western and violent incel beliefs. SINGAPORE: Two self-radicalised male Singaporeans were dealt with under the Internal Security Act (ISA) in March, including a 19-year-old influenced by what the Internal Security Department (ISD) has called "salad bar" extremism. Both cases of radicalisation were triggered by the ongoing Israeli-Palestinian conflict, ISD said on Wednesday (Jun 24).