GETTING AROUND MEXICO CITY SAFELY: UBER IS HERE

I only heard the word for the first time a few weeks ago, when a friend said he'd invested in an UBER car. I didn't pay a whole lot of attention. Then last week, my friend Jane who was visiting from L.A. sent an email, saying, "I'll see you at your place--I'll come by taxi or UBER." She explained a bit when she arrived, but it really hit me when it was time for her to go back to her hotel