It should be common knowledge for all employers: Knowingly employing unauthorized foreign workers and neglecting to comply with Form I-9 requirements verifying employment eligibility can land you in trouble.
A pair of recent related cases (U.S. v. Younes and U.S. v. Kearney Hospitality Inc.) before the U.S. District Court for the District of Nebraska highlight what can happen when an employer tries to hire or continues to employ an unauthorized worker.