Mary is a born in the U.S. French-American and an 'At-Will" employee who is terminated for insubordination and disloyalty after being caught by her employer, who monitors employee social media, making work related complaints on social media about her immediate supervisor to co-workers. One other born in the U.S. French-American employee was terminated in the past year for a similar infraction. However, three other employees who were not French-American but who also committed similar acts received only a warning.

Does Mary have any recourse against the employer under any of the employment/labor laws. Fully explain. Also explain the "At-Will" doctrine and how this scenario illustrates the current status of this doctrine.