US folks (or people who are knowledgeable about how US works): 'permanent resident' is the same thing as having your 'green card', right?
How difficult/straightforward it is to go from permanent resident status to actually becoming US citizen (if you're not married to a citizen and you don't have family in the US or anything)?
I don´t really know, but I guess it is easier if you have a really good job/if you are highly qualified in your professional field.