But the flow of Russian technology to Iran's missile program has also been a cardinal worry.

India is also an arms customer and a potential buyer for Russian nuclear technology.

China also remains a natural market for Russian technology, machinery and arms.

The reasons cited were lack of re-export rights on Russian technology in the missile.

China is the largest consumer of Russian military technology.

You don't see our secret agents buying Russian high technology and smuggling it to the West.

And they want to learn about Russian technology.

But we are surrounded by nuclear power stations using obsolete Russian technology.

Russian technology is on the brink of developing its own fiber-optic cable.

As with its space program, China's navy and air force still depend heavily on dated Russian technology.