Hong Kong authorities have set up fences and surveillance cameras at a reservoir and warned they could take legal action against trespassers, after a group was filmed entering a spillway to take photos while the facility was discharging water. A South China Morning Post reporter observed on Tuesday that two barriers and a surveillance camera had been set up at Ho Pui Reservoir in Tai Lam. After footage of the trespassers went viral over the weekend, the Water Supplies Department said it was...