Yea.. they want to have real time tracking of the packages.
I've sent thousands of packages out of the U.S.. to all over Europe, Asia, and down under.
UPS and FedEx have never lost a package.
USPS has lost no less than 10 packages.. when you start calling them asking about them all they can say is "once we get it past our borders, it ain't our problem"
Of course, they have no real way of being able to tell if it ever made it past the U.S. border, either.. and their "Delivery Confirmation" gets scanned twice. Once when it leaves the post office, and once when it gets dropped off at its destination.
Anything going UPS or FedEx from the U.S. to the U.K. is going to be pricey.. and if its heavy or weird shaped (like long and skinny bumpers) it's gunna cost some bucks.