Why was the Millennium bomber defeated?

• A. Lack of explosives
• B. Not on my watch! CBP officer Dean.
• C. Flight crew overwhelmed the bomber.
• D. Rapid response by the military.

Answer: (B)

Preventing an attack often hinges on vigilant screening and interdiction before a threat can reach an aircraft. In the Millennium case, the would-be bomber was stopped at a border screening by a Customs and Border Protection inspector, Diana Dean, who found bomb‑making materials in his car. That discovery allowed authorities to arrest him before he could board or detonate anything, illustrating how frontline security can defeat a plot at the point of entry. The phrase associated with the officer—Not on my watch—captures that decisive action. The other scenarios assume the threat gets on the plane or requires military intervention after the fact, which did not occur here.