gcclarke said:
Not really. The only thing for which a citizen (of any stripe) can be stripped of their citizenship is fraud in relation to either their citizenship application, or the application which lead to them becoming a permanent resident prior to citizenship. There is no such provision under the citizenship act for stripping people of their citizenship for any crimes committed after they legally became citizens.
Nor, IMHO, should there be.
Here is the pertinent information from USCIS
http://www.uscis.gov/policymanual/HTML/PolicyManual-Volume12-PartL.html
Chapter 2: Grounds for Revocation of Naturalization
In general, a person is subject to revocation of naturalization on the following grounds:
A. Person Procures Naturalization Illegally
A person is subject to revocation of naturalization if he or she procured naturalization illegally. Procuring naturalization illegally simply means that the person was not eligible for naturalization in the first place. Accordingly, any eligibility requirement for naturalization that was not met can form the basis for an action to revoke the naturalization of a person. This includes the requirements of residence, physical presence, lawful admission for permanent residence, good moral character, and attachment to the U.S. Constitution.[1]
Discovery that a person failed to comply with any of the requirements for naturalization at the time the person became a U.S. citizen renders his or her naturalization illegally procured. This applies even if the person is innocent of any willful deception or misrepresentation.[2]
B. Concealment of Material Fact or Willful Misrepresentation[3]
1. Concealment of Material Fact or Willful Misrepresentation
A person is subject to revocation of naturalization if there is deliberate deceit on the part of the person in misrepresenting or failing to disclose a material fact or facts on his or her naturalization application and subsequent examination.
In general, a person is subject to revocation of naturalization on this basis if:
The naturalized U.S. citizen misrepresented or concealed some fact;
The misrepresentation or concealment was willful;
The misrepresented or concealed fact or facts were material; and
The naturalized U.S. citizen procured citizenship as a result of the misrepresentation or concealment.[4]
This ground of revocation includes omissions as well as affirmative misrepresentations. The misrepresentations can be oral testimony provided during the naturalization interview or can include information contained on the application submitted by the applicant. The courts determine whether the misrepresented or concealed fact or facts were material. The test for materiality is whether the misrepresentations or concealment had a tendency to affect the decision. It is not necessary that the information, if disclosed, would have precluded naturalization.[5]
2. Membership or Affiliation with Certain Organizations
A person is subject to revocation of naturalization if the person becomes a member of, or affiliated with, the Communist party, other totalitarian party, or terrorist organization within five years of his or her naturalization.[6] In general, a person who is involved with such organizations cannot establish the naturalization requirements of having an attachment to the Constitution and of being well-disposed to the good order and happiness of the United States.[7]
The fact that a person becomes involved with such an organization within five years after the date of naturalization is prima facie evidence that he or she concealed or willfully misrepresented material evidence that would have prevented the person’s naturalization.
C. Other than Honorable Discharge before Five Years of Honorable Service after Naturalization
A person is subject to revocation of naturalization if:
The person became a United States citizen through naturalization on the basis of honorable service in the U.S. armed forces;[8]
The person subsequently separates from the U.S. armed forces under other than honorable conditions; and
The other than honorable discharge occurs before the person has served honorably for a period or periods aggregating at least five years.[9]
Further from FindLaw: http://immigration.findlaw.com/citizenship/can-your-u-s-citizenship-be-revoked-.html
Grounds for Denaturalization
Falsification or Concealment of Relevant Facts: You must be absolutely truthful when filling out paperwork and answering interview questions related to the naturalization application process. Even if the U.S. Citizenship and Immigration Service (USCIS) fails to recognize any lies or ommissions at first, the agency may file a denaturalization action against you after citizenship has been granted. Examples include failure to disclose criminal activities or lying about one's real name or identity.
Refusal to Testify Before Congress: You may not refuse to testify before a U.S. congressional committee whose job it is to investigate your alleged involvement in subversive acts, such as those intended to harm U.S. officials or overthrow the U.S. government. This requirement to testify in order to maintain citizenship status expires after 10 years.
Membership in Subversive Groups: Your citizenship may be revoked if the U.S. government can prove that you joined a subversive organization within five years of becoming a naturalized citizen. Membership in such organizations is considered a violation of the oath of U.S. allegiance. Examples include the Nazi Party and Al Qaeda.
Dishonorable Military Discharge: Since you may become a naturalized U.S. citizen by virtue of serving in the U.S. military, your citizenship may be revoked if you are dishonorably discharged before serving five years. Reasons for dishonorable discharge, which must follow a general court-martial, include desertion and sexual assault.
The cases I referred to were ones where the person was charged with an offense during the naturalization process, but no action was taken to stop the process. Later they were convicted of another crime and the prior charge was used as grounds for denaturalization as it was deemed that they had committed fraud during the naturalization process, or it was taken as prima facia evidence that they were not of good moral character.
