>Bajocero noted that having citizenship can keep you from getting deported, but I think if I was in a situation where I was about to be deported<
Same is if you have a US permanent residency card, the Homeland Security people at the inmmigration booth when non-US citizen enters the US territory either by Air or Land, the HS people can deport you without a cause,heard this from an acquitance working at the airport US inmmigration and the Homeland Security..
It saz, scanning any particular foreign passport, there can be any glitch showing in the PC screen then you are taken right into the interrogation room for validation if to let you in or,to deport you!
So if you are to stay in that country for long, it is better to get the citizenship instead of being content of just having the residency card..Once you acquire that citizenship status, you can not be deported period..