By LUIS V. TEODORO Vantage Point | BusinessWorld Posted by Bulatlat.com The Philippine ranking fell from 122nd in 2009 to 156th in the Paris-based Reporters Sans Frontieres’ (RSF — Reporters Without Borders) 2010 Press Freedom Index released on October 20. The 2010 index covers the period Sept. 1, 2009 to Sept. 1, 2010. The Philippine…