In the blood-smeared history of Pakistani politics, top leaders rarely emerge from prison unscathed. At a meeting, of the central executive of the PPP in Naudero, Sindh, Mr. Zardari asked son Bilawal to read a ‘political will’ from Benazir that declared that “my husband Asif Ali Zardari” would lead the party in her absence. Mr. Zardari, a polo player from …