It's been 18 years since when the 4000 first came out and 15 years since when the Junior was released. Lately, most of these 4000s and Juniors are aging and becoming badly degraded. Also, I noticed that most 4000s and Juniors are not sounding their warning tones (like how the 3000 was durring its late days). Does anyone think that the FCC will soon ring the death bell for the 4000 and Junior?