On Monday, John Kerry became the first secretary of state to visit Hiroshima, the Japanese city destroyed by a U.S. nuclear bomb on August 6, 1945.
Three days after the Hiroshima bombing, the U.S. dropped another nuclear bomb on the city of Nagasaki. Hundreds of thousands were killed.
The United States is the only country ever to drop an atomic bomb.
Kerry offered no apology for the U.S. nuclear attack but called for "a world free from nuclear weapons."
Despite his remarks, the Obama administration has been quietly upgrading its nuclear arsenal to create smaller, more precise nuclear bombs as part of a massive effort that will cost up to $1 trillion over three decades.
We speak to Marylia Kelley. Her group, the Alliance for Nuclear Accountability, just published a report titled "Trillion Dollar Trainwreck: Out-of-control U.S. nuclear weapons programs accelerate spending, proliferation, health and safety risks."
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