Hong Kong authorities have arrested 50 people, including some with alleged triad backgrounds, in a crackdown on bid-rigging activities involving 27 housing estates and buildings and about HK$500 million (US$64.1 million) in contracts. The Independent Commission Against Corruption (ICAC), police and antitrust regulator the Competition Commission on Monday revealed details of their joint operation, which was conducted last week. The ICAC said the suspects included the alleged mastermind and core...