The headline says it all

“Kerry Makes Gut-wrenching Visit to Hiroshima Site of A-bomb”

“HIROSHIMA, Japan -- A gut-wrenched John Kerry …”

Here is the sole mention (sort of) as to why Hiroshima received the world’s second successful atomic bomb:

“Many Americans believe the dropping of atomic bombs here on Aug. 6, 1945, and on the Japanese city of Nagasaki three days later were justified and hastened the end of the war.”

http://www.military.com/daily-news/2016/04/11/kerry-makes-gut-wrenching-visit-hiroshima-site-a-bomb.html