Ban Ki-moon urges nations to ratify nuclear treaty

The United States was urged today to take the lead among 10 nations yet to sign up to a global nuclear test ban treaty to take a significant step toward a goal of ridding the world of nuclear weapons.

UN Secretary-General Ban Ki-moon pushed for the 10 nations to sign up to the deal, saying it would ensure that North Korea’s test blast last October is the world’s final experiment with atomic weaponry.