"Mr Muigai [the visiting United Nations official on Human Rights] had also referred to restrictions in Singapore laws such as the Penal Code and Sedition Act, and how these may restrict public discussion on sensitive issues, such as race and religion.
He said: "I believe that the time is ripe for the authorities to review any legislative restrictions that may exist in the statute books in order to allow Singaporeans to share their views on matters of ethnicity, to identify potential issues of discomfort and above all, work together to find solutions."
The Ministry emphatically disagreed with this, saying such issues will always be sensitive to Singapore"
(emphasis added)
The full line from the press release: "Race, language and religion will always be sensitive issues in Singapore".
In commemmoration of Githu Muigai's visit, here's a picture of a REAL race riot that has actually occured within living memory:
Addendum: These are the LA riots of 1992.