The Mumbai Blasts

"Pretty good evidence". That's what Indian national security advisor N.K. Narayanan says the Indian authorities have connecting the ISI to the Mumbai blasts. He adds that there "are pieces of the puzzle not available." The Indians' retreat on having an airtight case can't possibly have anything to do with the fact that foreign secretary-level talks are scheduled to start soon, can it? Surely this entire episode was not a stunt to score cheap political points, was it? As I said here, if this case against us is dropped (and it's looking more and more likely that will happen), the Indian government owes us an apology. How can they, in good faith, talk about forwarding the peace process while engaging in these shenanigans?

By the way, if it turns out that this entire thing was bogus, my question will be: what changed between July 11 and 3 weeks ago? Specifically, what could have caused the Indian government, which was perfectly calm and reasonable in the immediate aftermath of the blasts, to suddenly accuse us in the beginning of October? I'm going to think about this myself over the next couple of days, but welcome readers' thoughts in helping me figure this out.