You mean the USA has non standard tech/standards and companies have to produce two SKU's one for export one for home - you fail production engineering 101.
The fiasco over not implementing GSM like the rest of the developed world did is a good example - less NIH might help.
*the remainder of the world.
> The US is dragging its feet on the whole PIN/CHIP migration.
Merchants are dragging their feet. The liability shift deadline is instituted by the card schemes themselves.