La Vang
While researching political and religious matters, he found out that the Marian Apparitions in La Vang, Quảng Trị, Vietnam, was a mere fabrication (based on various writings by well-known Vietnamese priests, bishops, and Catholic scholars, some of which he had happened to read tens of years ago). This was later confirmed by Catholic writer Nguyễn Lý Tưởng, and ultimately Pope John Paul II on the "Bicentenary of Our Lady's Apparitions in La Vang in 1998."