im sure this has been asked before....

You don't. Its the luck of the draw. If you are in the US, certain styles, such as the Speedy, are very popular so it will more than like be made in the US. If you really want one made in a particular country your best bet is to buy it at the store.
 
When buying from elux, I enter 'made in france' in the search function, because I prefer France items I'm sure it doesn't pull up everything that is a made in France item, but its a fairly big selection. The best way is to buy at a boutique, I guess, and see it for yourself.