[LibWhacker]

if you inhale to much you may just go to sleep and forget to breathe

Yep. With every little breath, you're getting another little dose. Eventually, you overdose and die. I would think it would be critical to ventilate the place or get the hostages out of there ASAP after the bad guys have been neutralized.

[cpdiii]

If a true Benzodiazapam type drug were used the lethal dose would be huge. I suspect no one died from the gas. The special ops personell could have premedicated themselves with an agent that blocks the action of Benzodiazpams (we use this agent in the hospital for overdoses) and thus been able to fight in the enviroment with no need of breathing apparatus.

The Russian Special Ops forces deserve our congratulations. They sent the terrorists on a one way ticket to hell and saved several times the number of hostages than were killed by the terrorists.