Has Singapore yet abandoned its government policy of suing people whose criticism they don't like?
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Not really -- most people do not realize that Singapore is a "government state" -- a "polite dictatorship" if you will. While we Americans do not like such systems, Singapore has a very unique set of circumstance under which order and non-violence must be maintained. They are surrounded by Muslim countries, and have had sectarian uprisings and riots which were very bad. Singapore is also a VERY TINY country. They do not want the negative influences of the outside world affecting their system there. You can walk across it in a day if you try. A government like that of the USA, would fail there in very short order and Singapore would be chaos and/or gone.
In fact, our Constitution forbids it.