The vice president made the remarks on a visit to Japan before heading to South Korea to attend the opening ceremony of the Winter Olympics in Pyeongchang.
The Court of Arbitration for Sport that heard the appeals said there was insufficient evidence of doping and overturned their lifetime Olympic bans. Eleven others saw their bans reduced.
It was the first such talks between the two countries in two years, with Seoul hoping for further dialogue that might lead to reunions between families divided by decades-old standoff.
U.S. Olympic bobsledders explain their craft as they prepare for Pyeongchang in 2018. Success depends on immense precision. One false step or a miscalculated lean can spell disaster.