BLUE RIBBON HEARING: Sen. Aquilino “Koko” Pimentel, chair of the Committee on Electoral Reforms and People’s Participation, together with Sen. Teofisto “TG” Guingona, chair of the Blue Ribbon Committee, question resource persons about allegations of massive poll fraud and election sabotage that occurred during the 2004 and 2007 national elections, Thursday, December 15, 2011. ( PRIB Photo by ALEX NUEVAESPANA)