Afghanistan to ask Pakistan about Taliban chief's whereabouts --- (Reuters) - Afghanistan will demand an explanation from Pakistan on the whereabouts of a former Taliban second-in-command when the leaders of both countries meet next week to discuss how to end years of insurgency, an Afghan official said on Saturday. --- The whereabouts of Mullah Baradar has been the source of intense speculation since Pakistan announced his release on September 20. Pakistani sources say he is still kept in a safe house and is closely watched by his Pakistani handlers.