Thanks for the information. It looks like it has been sparked by the resignation of the city council of Cancun and the removal of the Mayor. There may be taxi and bus strikes that may block the hotel zone. It is also a short term advisory, which is usually a good thing. Luckily, there aren't too many cruise stops in Cancun but there are many board readers who do land vacations there.
I went ahead and made it a click-able link so others may get to it without having to do a copy and paste.