Aside: I notice we use both #CaPoli and #CanPoli here in Canada. I will never forgive the internet standards people for going with the 2-letter iso names instead of the 3-letter ones for country-TLDs and language-codes.
3-letter codes would prevent the "is CA Canada or California".
The biggest countries use 2-letter state/prov codes, so 3-letter countries would prevent ambiguity.
My site should be Pxtl.can, written in en-can not Pxtl.ca written in en-ca.