Action will be taken against any Singaporean who fights overseas in foreign causes, Coordinating Minister for National Security K Shanmugam has said, emphasising the importance of racial and religious harmony in maintaining peace in Singapore.He also noted the critical role of religious and community leaders who help set the tone for harmony in Singapore.Shanmugam, who is also Minister for Home Affairs, was speaking at a fast-breaking session co-organised by Khadijah Mosque and the Religious...