Thankfully someone put this pompous, arrogant ass Professor (read: no real world experience) Bell's comments into the context they deserve.
No, Professor Bell, had we "overreacted", a large portion of the ME would be one large glass parking lot right about now, and people might actually be able to park there in a few hundred years.
Yes, that would have been an overreaction. IMHO one mushroom over where Kabul had been if the Taleban hadn't surrendered Ol' Slimey Ben Rotten within 72 hours would have been a measured reprisal, and would have saved lives on both sides.