The atomic bombings in Hiroshima and Nagasaki were events during World War II, which caused a large number of casualties and left over problems. Many people feel sad and angry about this incident and think it is a tragedy in human history. However, some people hold different views that the use of atomic bombs was an inevitable choice in the war at that time or a constraint on Japanese militarism. These different views can also be explained by different historical and political backgrounds.

In the context of freedom of speech, people have the right to express their views and opinions. However, freedom of speech does not mean that you can insult or hurt others' feelings at will. When making comments, you should also consider your social responsibility and respect the feelings of others.

To sum up, everyone has the right to express their views, but we should also respect history and other people's feelings, as well as social morality and responsibility.