571 calling for an inquiry into the proposed Pax Silica Hub in New Clark City to determine its environmental and community implications and whether our existing legal and regulatory safeguards are adequate.” 571 calling for an inquiry into the proposed Pax Silica Hub in New Clark City to determine its environmental and community implications and whether our existing legal and regulatory safeguards are adequate.) And while the Senator highlighted the promise of Pax Silica to the economy, he also emphasized its trade-offs. READ: Pax Silica needs Senate scrutiny before it moves forward“Investments are welcome, but transparency and accountability are non-negotiable. (I support Pax Silica but at the same time, before we embrace it and accept it, we just need to be enlightened.