There's a lot of self-censorship going on from both Singapore's journalists and its people [1], mostly because there's a culture of fear.

Have a look at this recent case where a teen blogger was jailed for making offensive remarks against Christianity, and for circulating obscene imagery. [2]

[1] https://en.wikipedia.org/wiki/OB_marker

[2] http://www.channelnewsasia.com/news/singapore/teen-blogger-a...