PM Lee Hsien Loong was nearing the end of his National Day Rally speech when he suddenly turned pale and stumbled. He managed to catch himself, and even wave to the crowd as he was helped off the stage. Soon after, the Prime Minister’s Office confirmed that it was not a stroke or a heart attack. PM had felt unsteady because of prolonged standing, heat and dehydration. PM Lee came back on stage to a standing ovation,....