Xi Jinping finally appeared on the front lines of China's fight against the Wuhan coronavirus. Here's what that could mean for his response to the crisis.

· Xi Jinping made his first physical appearance related to the fight against the deadly coronavirus that has killed more than 1,100 people.
· Messaging about appearance seemed to be tightly controlled and coordinated by the government-controlled media. 
· Xi emerged as tensions over the coronavirus and the government's...