 In 1997, Singapore experienced the effect of the Asian financial crisis and tough measures, such as cuts in the CPF contribution were implemented.In the first few years of the 21st century, Singapore went through some of its most serious postwar crises, including the SARS outbreak in 2003 and the threat of terrorism.In December 2001, a plot to bomb embassies and other infrastructure in Singapore was uncovered and 15 members of the Jemaah Islamiyah were arrested under the Internal Security Act.