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113 alleged communists were arrested and detained without trial by Singapore's security agencies.
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Operation Coldstore was the code name for a large-scale internal security operation carried out in Singapore on 2 February 1963, during the period when it was an internally self-governing state within the British Empire. The operation led to the arrest and detention without…Source: Wikipedia (CC BY-SA)
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The Internal Security Department (ISD) is the domestic intelligence, counter-espionage, counterterrorism, and primary security agency of Singapore under the purview of the Ministry of Home Affairs (MHA). It is tasked to confront national security threats ranging from subversion…Source: Wikipedia (CC BY-SA)