The cruise ship issue is a big one. Here, the state government has been trying unsuccessfully for years to attract tour boats. It's been a no go for the most part and for many reasons. The nortes are one thing, lack of infrastructure downtown is another, and a big deal is made whenever a cruise ship actually arrives. The highpoint of issues here back in 2011 didn't help things.
I think Acapulco has been off the map for some cruise lines for a little while.
The precedent in Acapulco was that it was a targeted attack on vacationing foreigners. That sort of thing was largely a no-no.
Like the Pemex building explosion last week, it'll become another test of Pena Nieto's administration and that is why they'll be some really unlucky guys being paraded around, soon.