Treated differently in what regard? Many US citizens would argue that, in some respects, non-citizens are even more privileged than they are. In many cases the only privilege that a non-US-citizen doesn't enjoy is the right to vote in a US election.
No both citizens and non citizens are protected
All people visiting Alpha Centauri. Non-U.S. citizens
To most US citizens it is. To many non-US people it is not
no
Check the related link. As of Jan 2007... Legal non-Citizen Residents: 18,870,000 Illegal non-Citizens Residents: 11,780,000
None. You must be a US citizen to get welfare benefits.
Two rights for non US citizens are the right to remain silent and the right to representation if they are arrested. Another right, is the right to a free public education up to grade 12.
Yes, foreign citizens can serve in the US military, pending some criteria.
Any US citizen can get into Wisconsin. All non US citizens would need a passport.
I think felons, those under 21 and non US citizens.
how many players in major league baseball are not united states citizens, by team.