Captain Ed points out how little we in the United States have heard on the atrocities at Belsan, at least from the MSM (Main Stream Media):

For instance, in today's coverage -- mere days after the slaughter of the children in Beslan -- the New York Times prefers to review the anger of the victims' families and its potential political impact on Vladimir Putin's career. In fact, Seth Mydans and C. J. Chivers postulate that the bombs went off by accident, rather than credit the cruel motives of the Islamists who forced hundreds of children to sit next to the explosives. The Washington Post waxes poetic with its headline, "The Sky Is Crying," but fails to explain the sadistic methods the terrorists used in subduing and abusing their child-hostages. The Los Angeles Times has several stories readily accessible from their site on the "siege", but again chooses to focus on the Russian response to the terrorists and the hypothesis that the initial explosions were an accident, this time blaming the children for accidentally pulling a wire.

He then highlights this London Telegraph article which provides more painful details than you ever wished to read - yet so necessary to understand this event; details that are conspicously absent from American journalism.

I recommend that you stop wasting your time here, and go read that article (Kleenex required).