Singapore's Prime Minister Lee Hsien Loong (front) views the messages at the Istana tribute site for Singapore's former prime minister Lee Kuan Yew in Singapore, March 24, 2015. Singapore's Prime Minister Lee Hsien Loong spoke to visitors at the Istana Gate on Tuesday when he stopped to read some of the messages left for Singapore's founding prime minister Lee Kuan Yew. (Xinhua/Then Chih Wey)
