Russia's Security Council is reportedly considering a ban on supplying the US with powerful RD-180 rocket engines for military communications satellites as Russia focuses on building its own new space launch center, Vostochny, in the Far East.
A ban on the rockets supply to the US heavy booster, Atlas V, which delivers weighty military communications satellites and deep space exploration vehicles into orbit, could put a stop to NASA's space programs - not just military satellites.
An unnamed representative of Russia's Federal Space Agency told the Izvestia newspaper that the Security Council is reconsidering the role of Russia's space industry in the American space exploration program, particularly the 2012 contract on delivering to the US heavy-duty RD-180 rocket engines.
Previously, Moscow has not objected to the fact that America's Atlas V boosters rigged with Russian rocket engines deliver advanced space armament systems into orbit. If a ban if put in place, however, engine delivery to the US would probably stop altogether, starting from 2015 ( via rt.com ).