That's because there had been religiously motivated knife attacks at the Kunming train station in 2014, and much worse in Xinjiang in 2008-2009. Not saying that

That's because there had been religiously motivated knife attacks at the Kunming train station in 2014, and much worse in Xinjiang in 2008-2009. Not saying that's right, but people's minds change, as they would for 9/11.