Ronald Lockhart, who was deaf, worked for FedEx as a package handler. Although fluent in American Sign

Question:

Ronald Lockhart, who was deaf, worked for FedEx as a package handler. Although fluent in American Sign Language, he could not read lips. After 9/11, the company held meetings to talk about security issues. Lockhart complained to the EEOC that he could not understand these discussions. FedEx fired him. Has FedEx violated the law?