Pakistan, Oct. 18 -- Some tragedies become etched into the pages of history in such a way that no storm of passing time can erase them. The passage of time covers many wounds with dust, generations change, the forms of promises and commitments change, and thrones and crowns pass into the hands of new heirs. But certain days are engraved not only in human memory but also upon the collective conscience of nations. 18 October 2007 was one such day in our national history; a day whose morning was filled with the light of democratic hopes and whose evening was full of an immense expression of public love, but whose night became associated with the smell of gunpowder, the redness of blood, the cries of mothers, the sobs of sisters, and the help...