re:Why the US doesn't rule the world
Well in Japan caller pays for calls to mobiles but reciever for emails (since there is no way to charge sender.) All phones have an email address but it is assigned by the user and is not your phone number. It used to be your phone number but there was too much spam, including companines send emails to every 8 digit number for for a provider. There is SMS by phone number that only works from a phone on the same provider.
Even with this companies still manage to spam. If you call someone and they don't answer you are not charged. If you hangup after one ring or less it is very unlikely you will get answer (espcially at 3:00 A.M.), but the reciever will see a phone number on the phone in the morning and may call back at which point you voice spam them. Very irratting since I get the occaisional real calls at 3:00 AM I leave my phone on and near the bed (futon actualy).
The phone companies finally did something (possibly involving the police or maybe just some guys with baseball bats or swords) and this does not seem to happen anymore.
Lastly why has no one mentioned people who get Paris Hilton's old number?