Are elderly Japanese still mad (or bitter) at the U.S. for Hiroshima and Nagasaki?

https://www.quora.com/Are-elderly-Japanese-still-mad-or-bitter-at-the-U-S-for-Hiroshima-and-Nagasaki/answer/%E6%A1%91%E7%94%B0-%E5%81%A5%E5%8F%B8-Kuwata-Kenji?prompt_topic_bio=1

Why do you care about this and ask questions?
What's your feeling?
Do you think that the Japanese will be happy to hate people like Koreans?