On 29 December, US ambassador to Russia Michael McFaul said the United States condemns in the strongest terms a terrorist attack at the railway station in the southern Russian city of Volgograd. “We send our sincere condolences to the families of the victims and stand in solidarity with the Russian people against terrorism of any kind,” he said.

European Union foreign policy chief Catherine Ashton also strongly condemned the suicide attack in Volgograd. “I am deeply sadden...