PakistanSiachen tragedy: Nawaz Sharif to visit Gayari SectorFarheen RazaApril 15, 2012April 15, 2012 by Farheen RazaApril 15, 2012April 15, 2012 Lahore: Â Pakistan Muslim League-Nawaz (PML-N) President Mian Nawaz Sharif will visit Gayari Sector of Siachen on April 17, sources said on Sunday....