sentences:  Additionally, regulatory changes on both sides of the border presented a grim panorama.On the American side, a new international radio agreement would diminish the coverage area of Mexican clear-channel stations by allowing American stations to set up shop on those frequencies; meanwhile, Mexico proposed changes to its broadcast law that would allow for operators to own their stations for 10 years, at which time the government would have the right to purchase a station for the depreciated value of its assets.However, one Mexican group was highly interested in taking control of XERF for itself.