I visited the museum on January 6, 2018. While well done technically, unfortunately the exhibits perpetuate several myths about nuclear weapons and nuclear testing, and omit bothersome details about the consequences of these events. For example:
1. The first exhibit perpetuates the myth that the nuclear bombs dropped on Japan ended World War II. Not true. Detailed reviews of official Japanese records and diaries of its leaders reveal that Japan surrendered because Russia entered the war and was beginning to occupy the northern parts of Japan. Japan's Supreme War Council did not even meet following the atomic destruction of Hiroshima; more than 60 Japanese cities had already been destroyed by US air strikes. It did meet following Russia's entry into the war two days later and, in fact, was meeting to discuss the surrender when the second US atomic bomb destroyed Nagasaki. Incidentally, no mention is made of the hundreds of thousands of Japanese civilian casualties that resulted from the bombs; in fact, it states falsely that the bombs were dropped on military/industrial targets.
2. The exhibit states that high yield US atomic weapons were tested in the Pacific because it was too dangerous to test them in the US itself. It doesn't mention the hundreds (thousands?) of Pacific islanders and Japanese killed or given cancer as a result of those tests. It does mention, but only briefly and once, that hundreds (thousands?) of Americans also were given cancer as a result of the tests in Nevada.
3. It recalls the lame civil defense efforts perpetuated by the US Government in the 1950s ("duck and cover") and leaves the impression that these actually would have protected us from a massive Soviet nuclear attack. Not true!
There are many more misleading messages -- all in the interest of justifying nuclear weapons and nuclear testing, but I'll spare you the details. Barry B.