The gov't claims it's to aid in the war on drugs, but is it a severe privacy infraction?
"Last week, revisions to Mexican federal law took effect
that give public authorities and law enforcement unprecedented ability
to compel mobile phone companies to disclose real-time geographic data
from mobile phone companies in a wide variety of cases."
Full article at Ars Technica: Mexican "Geolocalization Law" draws ire of privacy activists