The mayors of Nagasaki and Hiroshima have been invited to the ceremony where an international group that has campaigned for a treaty banning nuclear weapons will be awarded the Nobel Peace Prize, the cities said Wednesday.Hiroshima Mayor Kazumi Matsui is expected to attend the ceremony to be held on Dec. 10 in Oslo, while Nagasaki Mayor Tomihisa Taue is considering attending, city officials said. They would be the first Hiroshima and Nagasaki mayors to attend a Nobel Peace Prize ceremony.The efforts of 2017 Nobel Peace Prize winner, the International Campaign to Abolish Nuclear Weapons, led…READ FULL ARTICLE