Should it be easy or hard to become a us citizen

In my opinion it should be hard to become a U.S citizen if you are not born one, because we don't want unwanted people being a U.S citizen.

well since twins have about the same dna they dont have one think in common which is the figer print. nobodys fingerprint is the same. if your using twin you would most likely get around the same results for both of them because of the genetics.. i hope this