He calls it the straw that broke the camel's back:
"The recent slaughters in Russia were the proverbial straw that broke the camel's back of excusing or explaining away radical Islamic terror. If the Estonians can break away from post-Soviet oppression and free themselves from Russian authoritarianism without slaughtering schoolchildren and blowing up airplanes, then the Chechens can as well -- but only if they wish to create democracy rather than an Islamic fascist state."
