RUSSIAN SALE OF S-300 MISSILE SYSTEM IS OFF

"... Russia... (will) permanently halt delivery of S-300 missiles, which Tehran wanted to build as a deterrent to airstrikes against its nuclear facilities. The declaration by Mr. Medvedev ended equivocation by Russian officials about whether the sophisticated advanced air defense system would fall under the sanctions ban..."
http://www.nytimes.com/2010/09/23/world/europe/23prexy.html?_r=1