MQM's Khalid Maqbool Siddiqui criticizes PPP's 15-year rule in Sindh - Ex-Karachi mayor Wasim Akhtar, two MQM men acquitted in May 12 violence case - MQM emphasises role of youth in nation's future - Four get life term for facilitating assassins in ex-MQM leader Ali Raza Abidi's murder case - MQM-P to resort to street agitation if street crime not addressed - MQM-P blasts Sindh govt over Karachi street crimes - MQM-P calls for 'Empowered' Districts - PML-N, MQM-P accord to empower local govts - PML-N assures MQM-P of Sindh governorship