Why teenagers become self-radicalised - and the warning signs to look out for

The recent arrests of three self-radicalised teenagers under the Internal Security Act (ISA) have sent shockwaves through Singapore, with attacks in schools planned in two cases. What makes young people vulnerable to extremist ideologies? And what more can parents, schools and friends do as the online world increasingly shapes their exposure and belief? Steven Chia and Tiffany Ang speak with…