i would also like to add this bit.
personally, i don't have an impression that Corona is a kasosyo of GMA but don't get me wrong, I think GMA is also guilty of abusing the pork barrel.
but i think that if Corona will be given a chance to lead this investigation, he will want to redeem his damaged reputation.
Corona was just a victim of power tripping by abnoy. the rumor that tongressman tupac, este kupal, este tupas pala forced all the other tongressman to sign the petition eventhough some of them were not willing to do so or else risk not getting any pork barrel from abnoy is true.
i have a friend who's a friend of one of the tongressman who confirmed this.
tupas just went to the house of congress to present something. all the other tongressman though it was a slideshow regarding the RH bill but all of them were surprised when it was all about impeaching Corona.
then without even giving any of the other tongressman a chance to question, he forced all of them to sign the petition or else.
i still maintain that having Corona to lead the investigation of pork barrel is still a feasible idea.