Yo bro. Even though you are citizen of this country and work for state or federal government, you will be watched like spies every second. Your each and every move, your families moves will be watched by americas shophisticated security system. They think that these foreigners get american citizenship and infiltrate americas security system.

During world war II, Americans find out that the head of CIA was russian agent (american citizen). and slowly found out  lot of foreign agents were inside white house, capital.They had infested Americas security. So they don't trust any other second category citizens to date even at lowest level. 
So don't be happy that you become a citizen. Second class citizen are treated as foreign spies. Watch out what you type bro.