I'm from the United States, I brought my wife through a fiancée visa and we got married within 90 days and she went back to her country of Colombia. One year later I submit the petition for my wife to come to the United States, she came back got her permanent resident card and she left me and went to another city in the United States. My question is, if the permanent resident card can be revoked and what can I do to report this kind of fraud.