Despite interference by the National Rifle Association (NRA), the CDC has kept up the basic data, if not research into the details of who, how, and why.
Despite being intensely disliked by soccer fans (mostly because of his constant interference in the coaching duties of the Brazilian national soccer team), Teixeira has never had enemies either capable or willing to confront him.
In America there is already a military system to spot GPS interference: the GPS Jammer Detection and Location (JLOC) system run by the National Geospatial Intelligence Agency.