Territory's bad brake

A SUDDEN brake failure, due to a ruptured brake hose on my 2004 Ford Territory, had almost catastrophic consequences. I demanded Ford replace the remaining hoses as well as the ruptured one, but they only agreed to replace the other rear hose and not the front left one. I wrote demanding they investigate these brake hoses as a matter of urgency and safety after discovering other 2004 Territory owners have experienced brake failure. Ford's response was that other people's vehicles were none of my business and that the people I had spoken to in the car business about this were not Ford authorities. They have on-going investigations into faults reported by their dealerships. But how long does an investigation have to go on before they reach a conclusion? And many of these cars' brakes were not repaired by dealerships as they were out of warranty, so how would Ford have accurate records for their ``investigation''? I am seriously concerned about the safety of other 2004 Territory drivers.