@Mike Sylwester,
Generally I agree with the premise that Occam’s razor would indicate that a vast Pakistani government conspiracy is not required to explain the training and logistics needed to carry out the Mumbai attack. However that does not address the equally real possibility that elements within the intelligence service and the navy could have cooperated with groups who coordinated the mission out of some madrassas or linked terror cells. The government of Pakistan is rapidly becoming a legal fiction, like the government of Somalia, which does not have a monopoly on force within its claimed territory and therefore is not truly sovereign. Note that any claim that America’s armed citizenry makes the US government less than competent to act as the sole agent of the sovereign nation will be preemptively dismissed. Since the government of Pakistan is no longer able to prevent attacks on other countries from originating within its territory it is not competent to be treated as a full partner within the international system. It is now like the government of Lebanon only one faction among several that are jockeying for position. India must decide whether to deal with it by engagement, support, isolation, interference or invasion.