The commission of some crimes so serious that even if you otherwise qualify for asylum, we're not going to give you relief. We just can't have people of your type in our country. Regardless of the truly exceptional circumstances that would otherwise warrant the grant of asylum.
Those crimes include the offense of using someone else's social security number to get a job in the U.S. (because, without that number, it's illegal for the employer to hire you).
So holds the Ninth Circuit.