"Washington has told Moscow that Russian help in resolving Iran's nuclear program would make its missile shield plans for Europe unnecessary, a Russian daily said on Monday, citing White House sources.
U.S. President Barack Obama made the proposal on Iran in a letter to his Russian counterpart, Dmitry Medvedev, Kommersant said, referring to unidentified U.S. officials."
http://en.rian.ru/russia/20090302/120375219.html
Barack Obama is ready to drop the missile defense shield project in Poland in the Czech Republic so Russia can help us deal with Iran's nuclear program. On the other hand, numerous Russian companies and individuals have aided Iran's nuclear program in past years.