LeBron James wasn’t the only Twitter user who thought Daryl Morey’s tweet supporting Hong Kong’s protesters was misinformed. There was a whole army of pro-China troll accounts that happened to agree.

A review of nearly 170,000 tweets, plus analysis from expert information warfare researchers, shows that Morey was the target of what appears to be a coordinated harassment campaign after his tweet on Oct. 4 set off an international furor and threatened the NBA’s future in the world’s most populous country.

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