NEW HAVEN, Conn. (WTNH) — The 9/11 attacks forever changed the face of U.S. security, but how is the nation protecting against terrorist attacks 22 years later?

Kenneth Gray — a senior lecturer of criminal justice, homeland security and emergency management at the University of New Haven, and a former FBI special agent — joined News 8 to talk about what 9/11 changed, what advancements in technology have been made since and how terrorism is defined in 2023.

Watch the full interview in the player above.