Russia has expelled 20 Czech diplomats in retaliation for a slew of diplomatic expulsions by Prague and gave the affected Czech diplomats just over 24 hours to leave the country, the RIA news agency quoted the Foreign Ministry as saying. Moscow made the announcement after the Czech ambassador in Moscow, Vitezslav Pivonka, had been summoned by the ministry. Tensions between Moscow and Prague spiral with Russia ordering out 20 diplomats ...