Nobody.
But FedEx sure is closing the gap.
I have a package shipping from VA. It left 4/17, scheduled to arrive 4/22.
On 4/18 at 1:57 a.m. in NC, the note says "Barcode label unreadable and replaced". It was back into the system at 2:02 a.m.
This changed the delivery date from 4/23 to 4/27. A 5 minute hiccup results in a 5 day delay.