Owners of residential buildings in Hong Kong should consider installing sprinklers and smoke detectors rather than relying on fire alarm call points with glass covers, experts have said, after video emerged that appeared to show a resident trying to sound the alarm using one of the boxes at Wang Fuk Court but without success. The video clip circulating on social media purportedly taken from a security camera in the hallway of one of the towers shows the man trying to use the fire alarm call...