Answer:
Defamation
Step-by-step explanation:
Defamation is a type of intentional tort that involves the deliberate action by someone (or an entity) to damage the reputation of another person (or entity).
In other words, the letter sent by the "disgruntled employee" seeks to defame (give a bad name) to the newspaper (his employer). Therefore, such actions can lead to a lawsuit filed by the newspaper against the employee.