It is a little more than "interference issues." He has been flat out told no by the FAA, the FCC and Congress because his plans for nationwide broadband system will interfere with GPS signals for military and civilian uses. He has blamed his problems on the entire GPS industry claiming they are at fault for not sheilding their units from his broadband signal. He has threatened to sue the government for not allowing him to building his broadband system. Why is this guy still persuing this? Sure am glad I don't money invested in his funds or company.