Hong Kong police have arrested 150 people in a three-day crackdown on an illegal bookmaking syndicate that handled more than HK$320 million (US$40.8 million) in wagers, as officers warned against unlawful betting during the Fifa World Cup. About 600 officers carried out raids across the city between Friday and Sunday, targeting factory units in Kwai Chung, Tsing Yi, Sha Tin, Kwun Tong and Kowloon City, the organised crime and triad bureau said on Tuesday. The operation shut down four...