By Darya Korsunskaya and Natalia Zinets MOSCOW/KYIV (Reuters) – Russia suggested on Monday that it was ready to keep talking to the West to try to defuse a security crisis, while the United States said Moscow was adding to its military capabilities by the day for a potential attack on Ukraine. Russia has more than 100,000 troops massed near the border of Ukraine. It denies Western accusations that it is planning an invasion, but says it could take unspecified “military-technical” action unless a range of demands are met, including barring Kyiv from ever joining the NATO alliance. In a televise…