Tens of thousands of Pakistanis have attended the first mass rally held by the son of murdered Prime Minister Benazir Bhutto.
By Shahzeb Jillani, BBC News, Karachi, Sindh
Karachi has not seen such a huge PPP rally for years. The party is trying to show that it still has mass appeal, and can compete with other opposition politicians such as Imran Khan. It is, after all, a party that has fought military dictatorships in Pakistan time and again over the last four decades.