sends word that Russia will now ban U.S. military satellite launches using Russian-made rockets
. According to Deputy Prime Minister Dmitry Rogozin, this is retaliation for U.S. sanctions on high-tech items, put in place because of the dispute in the Ukraine. Rogozin also threatened to block U.S. plans to keep using the International Space Station beyond its 2020 mission end date. That's not all: 'Rogozin also said Russia will suspend the operation of GPS satellite navigation system sites in Russia from June and seek talks with Washington on opening similar sites in the United States for Russia's own system, Glonass. He threatened the permanent closure of the GPS sites in Russia if that is not agreed by September.'