Russian nuclear cooperation with Iran is also a major Israeli concern.

He needs Russian cooperation in the war against terrorism and the attacks on Afghanistan.

The Pakistan government has proposed Russian cooperation in the project.

"There is no prospect of ever winning Russian cooperation."

But it is now clear that this Russian cooperation was an aberration.

Washington has long been worried about Russian nuclear cooperation with Iran.

For example, it will be difficult to secure Russian cooperation in the "near abroad"

Another senior official said the main issue was the need for Russian and Chinese cooperation to stop dangerous exports.

The question is whether this will lead to further Russian cooperation.

Russian cooperation has to be seen in the longer term.