NEW The president announced Wednesday in his speech that he will host a Nuclear Security Summit in 2016 to work with other countries in securing nuclear materials and preventing nuclear terrorism . : CNN calls Obama 's speech good , but not a ` ` gold standard '' in history . President Obama says it 's time to ` ` ' beyond Cold War postures '' on nuclear arms . Obama invokes JFK 's ` ` peace with justice '' call from 50 years ago . The president speaks at Berlin 's iconic Brandenburg Gate .
NEW : CNN calls Obama 's speech good , but not a ` ` gold standard '' in history . President Obama says it 's time to ` ` ' beyond Cold War postures '' on nuclear arms . Obama invokes JFK 's ` ` peace with justice '' call from 50 years ago . The president speaks at Berlin 's iconic Brandenburg Gate .