BY most accounts, the protest was not massive. Nor was it unexpected. And yet, it ended in gruesome bloodshed. The question is: why? Where were the security agencies? For context, around a dozen Karachiites were killed and scores others injured this Sunday when a protest outside the American consulate in Karachi took an ugly turn. The incident happened hours after the assassination of Ayatollah Ali Khamenei was confirmed by Iranian media. By then, an outpouring of grief had snowballed into palpa...