I prefer this explanation.
The Leonine Prayers are a set of prayers that from 1884 to early 1965 were prescribed by the Popes for recitation after Low Mass. They are still sometimes used at celebrations of the Tridentine Mass today.
The prayers did not form part of the Mass itself, but were prescribed for specific intentions. The original intention was the defence of the temporal sovereignty of the Holy See. After this problem was settled with the Lateran Treaty of 1929, Pope Pius XI ordered that the prayers should be said for the restoration to the people of Russia of tranquillity and freedom to profess the Catholic faith. This gave rise to the unofficial and inaccurate use of the name “Prayers for the Conversion of Russia” for the prayers, which were also known, less inaccurately, as “Prayers after Mass”. [1][2]
Okay, that could explain Russia.
But who the heck prayed for America to sink into the pit?
Don’t forget Our Lady of Fatima.