The possibilities for increase in the security measures and the level of physical protection of Kozluduy were discussed by the standing interdepartmental commission on protection of the Nuclear Power Plant on September 18. `Measures were taken for the air protection of the N-plant by the Defense Ministry, the plant`s Security Directorate and the individual national services of the Interior Ministry, `Engineer Angelaki Gotsev, an expert on physical protection and security of nuclear facilities in Bulgaria in the Committee for the Peaceful Uses of the Atomic Energy, said.` The planned measures are adequate and reliable, but this does not mean that they will not be upgraded constantly,` Gotsev added. In light of the attacks in the United States, the four-level readiness scale for protection of the nuclear plant was increased with one level. The situation was similar during the crisis in Kosovo last year.