Arun Shourie: Tuesday, November 13, 2007Ulti ho gayin sab tadbirein, kuchch na dawa ne kaam kiya — every stratagem has boomeranged, no potion works. That’s Pervez Musharraf’s predicament today, writes Arun Shourie in a three-part series on Pakistan beginning today The only persons who could have been surprised by what Musharraf has done are the Americans - who had invested everything in him, and