Survivors mark 75th anniversary of world’s 1st atomic attack

People pray in front of the cenotaph for the atomic bombing victims early Thursday. (AP Photo/Eugene Hoshiko)

A man prays in front of the cenotaph for the atomic bombing victims before the start of ceremony to mark the 75th anniversary of the bombing in Hiroshima, western Japan, early Thursday. (AP Photos/Eugene Hoshiko)

HIROSHIMA, Japan — The dwindling witnesses to the world’s first atomic bombing marked its 75th anniversary Thursday, with Hiroshima’s mayor and others noting as hypocritical the Japanese government’s refusal to sign a nuclear weapons ban treaty.