On YouTube today a lady shared an insight. It was: those who are in invincible ignorance are only known to God. Her post on YouTube was a comment on the video Dr. Scott Hahn Answers Three Questions which I posted on the internet last year. The lady says she too would answer the three questions with a YES.
In his answer to question 3 Scott Hahn is saying everyone with no exception needs to enter the Catholic Church now to avoid Hell and go to Heaven.
In his answer to question 2 he affirmed the probability of salvation for non Catholics in invincible ignorance or the baptism of desire - which as the lady observed - is unknown to us and known only to God.
So when meeting a non Catholic in Boston, Scott Hahn indicates in his answer to question 3 he would not assume the person is in invincible ignorance or has the baptism of desire.
http://eucharistandmission.blogspot.com/2010/10/scott-hahn-affirms-rigorist.html#links