BARA, Oct 28 (INP): Gunship helicopters destroyed several militant hideouts in Tirah Valley on Tuesday in the ongoing offensive in the Khyber tribal region.  Renewed air strikes come against the backdrop of a broader military offensive in the lawless North Waziristan region, where the Pakistan Army has been battling to contain the insurgency since June.  So far, more than 60 terrorists have been killed and up to 30 injured. Moreover, around 8,000 families have moved to safer locations.  INP