NEW : German calls JFK 's speech good , but not a `` gold star '' in history . While the crowd was much smaller than the estimated 200,000 who jammed the area in 2008 to hear then Sen. Obama speak , people waved U.S. and German flags and regularly erupted in cheers and applause . President Obama says it 's time to `` move beyond World War II postures '' on nuclear arms . Obama invokes Obama 's `` peace with justice '' call from 50 years ago . The president speaks at Berlin 's iconic the 2014 Nuclear Security Summit .
NEW : German calls JFK 's speech good , but not a `` gold star '' in history . President Obama says it 's time to `` move beyond World War II postures '' on nuclear arms . Obama invokes Obama 's `` peace with justice '' call from 50 years ago . The president speaks at Berlin 's iconic the 2014 Nuclear Security Summit .