translator: i raised my head and here came the blast. somebody made a shout starting with the sound ah, and followed by an explosion. the suitcase was on fire. reporter: inside a cloud of thick smoke, chaos, and victims. baggage and blood strewn across the airport floor. terrible. never wish i had seen it. frightened now? no, but very shocked. reporter: dozens were killed and more than 160 wounded, many removed from the terminal on gurney. medvedev quickly blamed terrorists vowing to find and punish those behind it. u.s. officials condemn the attack. we stand with the people of russia in this moment of sorrow and grief. reporter: so far, there has been no claim of responsibility. now, there are a lot of questions here russians are concerned that maybe this