A majority of Americans are supportive of talks between North Korea and the U.S. over the regime's nuclear program, but almost half don't think Kim Jong-un and other North Korean leaders are serious "about addressing international concerns," a new Pew Research survey shows.

The big picture: Americans are more supportive of talks with North Korea than they were of talks with Iran before the nuclear deal was reached, Pew reveals. In March 2015, 49% of the public approved of negotiating with Iran, compared to 71% who approve of negotiations with North Korea.