[1] http://www.theonlinecitizen.com/2016/04/interview-jason-soo-...
"In 1987, 22 people were arrested under Singapore’s Internal Security Act (ISA) in a security exercise known as Operation Spectrum.
Accused of being involved in a Marxist conspiracy to establish a communist state, many detainees were tortured and then coerced into implicating themselves and their friends on public television."