Pursuant to 49 U.S. Code § 46503, individuals in an area within a commercial service airport in the United States may face criminal liability (including fines and/or imprisonment for no more than 10 years) for assaulting a Federal, airport, or air carrier employee who has security duties within the airport, interfering with the performance of the duties of the employee or lessening the ability of the employee to perform those duties.  If the individual uses a dangerous weapon in committing the assault or interference, the individual may be imprisoned for any term of years or life imprisonment.