As President Obama visits Hiroshima, look back on how the city recovered after the atom bomb was dropped.
stapfVIDEO: NewsHour – A look at world’s #nuclear reality, 70 years after #Hiroshima http://www.pbs.org/newshour/bb/a-look-at-worlds-nuclear-reality-70-years-after-hiroshima/#.V0nasP6W-Vo.twitter … @bulletinatomic #nuclearweapons