Of the many angry and saddened responses that the Moscow airport bombing has precipitated (see RFE/RL for a selection of online comments), opposition leader Boris Nemtsov has proved particularly vociferous.  From the Other Russia:

What we have here is the total collapse of anti-terrorism operations in the country. One hundred percent of the responsibility for this collapse lies with V. Putin. It was he who came to power in 2000 under the slogan of “flush the terrorists down the toilet.” It was he who used the war in the Caucasus and the apartment bombings in Moscow to the maximum extent to raise his personal political rating. It was he who actively used terrorist attacks to strengthen one-man government at the beginning of his career. After the terrorist attack in Dubrovka in 2002 he introduced total censorship over television and after the terrorist attack in Beslan he did away with gubernatorial elections, all the while strengthening his own, as later became clear, thoroughly corrupt vertical. At that time, we were instilled with the idea that we were obligated to sacrifice freedom and democracy for the sake of safety. We sacrificed. Now there are many more terrorist attacks and much less safety.