PakistanHeavy rains wreak havoc in parts of Pakistan, 20 killedTNT DeskSeptember 5, 2012September 6, 2012 by TNT DeskSeptember 5, 2012September 6, 2012 Karachi/Islamabad: At least 20 people were killed and several others injured while scores of houses collapsed as heavy rains wreaked havoc in part of Pakistan...