Hey thanks. I've been lurking here a while, but just got registered/activated.
Not 'as they please,' exactly. Borders must be patrolled for smuggling (just like streets need be patrolled for crimes), and people must be registered with the state so that we can tax them, but I think the criteria for citizenship should be somewhere along the lines of:
1. I have not committed crimes equivalent to felonies in other countries. (waivable, in the spirit of second chances
)
2. I do no molest little boys.
...and maybe throw something in there about no fat chicks, but you get the idea.