russia is nogog to cange its position until the assad regime begins to fall. >> brown: yet they went ahead and pushed for another vote today. >> that's right. but a lot of military officials think it's going to be the events on the ground that will drive this forward, not the diplomatic events. >> brown: leonard spector, i want to turn to the chemical weapons question. fill in a bit of the picture. what's known about the size and scope of the program in syria? >> the size and scope is... the quantity of materials hundreds of on thes and the variety of marial, everhingrom the world war i gass so-to-the very modern persistence nerve gases, the slimes, as they say, that will stay in place for a while, for days and remain dangerous. >> brown: and build up over time and for what purposes? what intention? >> principle, this is a response perhaps, to israeli capabilities and it's a very significant symbol of assad's and his father's strength in the region and a way of demonstrating syrian leadership. certainly there's boththe military and symbolic side to this. >> brown: you've tracked a ch

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