US calls Russia 'manure salesmen' over Moscow attack claims - DW (English)
- US calls Russia 'manure salesmen' over Moscow attack claims DW (English)
- Why Russia's Vast Security Services Fell Short on Deadly Attack The New York Times
- 4 Arrested Over Moscow Attack That Killed 143, Says Islamic State Group NDTV
- The Moscow concert massacre was a major security blunder. What's behind that failure? The Associated Press
- What A Missed Terror Warning Says About U.S.-Russian Ties And Putin's Thinking Radio Free Europe / Radio Liberty