TOKYO -- One year after then-U.S. President Barack Obama prodded mankind to dream of a future without nuclear weapons in Hiroshima, the world looks like a different place.
Idealism pushed aside by Trump's America-first mantra, defiant North Korea

Obama spoke in Hiroshima last May, marking the first visit to the city by a sitting U.S. president.
TOKYO -- One year after then-U.S. President Barack Obama prodded mankind to dream of a future without nuclear weapons in Hiroshima, the world looks like a different place.