From the BBC:
Commenting on the bombing, Russia's Interior Minister Rashid Nurgaliyev said: "When information was already known and when appropriate preventive measures should already have been taken [the police] failed to work." (...)
Russian President Dmitry Medvedev sacked the region's interior minister, Ruslan Meiriyev, saying the attack had been preventable.
"This act of terror could have been averted," said Mr Medvedev. "The police must protect the people and the police must also be able to defend themselves."



How 'bout we blame the terrorists?