OPINION: Is NUS PRC scholar Sun Xu required to serve National Service?

The Singapore government has sponsored Sun Xu with scholarship beginning in 2006 to study in Raffles Junior College, and thereafter another scholarship to study in NUS, for a total of six years of free education and expenses fully paid for by the state. The question on everyone's lip now is whether Sun Xu is required to serve National Service after taking so much benefits from Singapore? Maybe our opposition MPs can put this question to Teo Chee Hean.