FWIW, it is definitely not the US.

Applied for passport renewal on June 28, made note of September 7 travel date and by September 1 was frantic about not getting it in time. Nine weeks had passed and still no passport.

The supervisor I spoke with at the National Passport Agency informed me that I still had the option of upgrading to expedite, paying the $60 fee, even when THEY were out of their 4-6 week window by 3 weeks. I refused and called my congressman who handled it. Literally the next day the passport was at my door via Fed Ex overnight delivery.