This primer is part of The Straits Times' initiative to discuss issues of national concern.
Each Monday, the paper's correspondents will address burning questions in the Opinion section, offering Singaporean perspectives on complex issues.
The primers, as well as six campus talks helmed by editors and correspondents, are part of this paper's outreach programme called The Straits Times-Ministry of Education National Current Affairs Quiz, nicknamed The Big Quiz.
The nationwide event, with presenting sponsor Singapore Press Holdings Foundation, aims to promote the understanding of civics among pre-university students.
St Andrew's Junior College won the first quiz round, held at Catholic Junior College on April 17.
Anderson Junior College won the second quiz round on home ground on April 29, while Anglo-Chinese Junior College took the top honours at the third quiz round on May 6 at River Valley High School. Tampines Junior College won the fourth quiz round on home ground on May 22, while Yishun Junior College won the fifth round on home ground on May 27.
The last talk by ST journalists and quiz round will be held on July 29 at Pioneer Junior College.
For more information, visit http://www.straits times. com/tags/the-big-quiz