U.S. Secretary of State John Kerry (R) speaks to journalists during a press conference with Russian Foreign Minister Sergey Lavrov at the United Nations headquarters in New York, the United States, September 30, 2015. AP/BTA
"The biggest risk in this situation is that those fighters, thousands of them already being there, including those who migrated from Russia, will return and will commit their dark deeds in our country. These are the risks we are doing our best to avoid, [and I am] certain we will succeed."
Russian Foreign Minister Sergey Lavrov answering to a question what threats the Islamic State (IS) offensive is posing to his country.