Back in the DF, I saw a crawl on CNN: 'U.S. Mexico Mum on Attack' but there was no report so I looked it up online.
See below for the Los Angeles Times report:
Apparently Mexican federal police are suspected of firing automatic weapons at American diplomats in an SUV traveling on a highway from the Mexico City to Cuernavaca.
This is not the first time in recent years that American diplomats have found themselves under fire from shady Mexican gunman.
Mexican police and military are notorious for harboring rogue elements who moonlight as thugs and gunman for the narco cartels.