There are mounting hopes that Barack Obama will use the occasion of the Group of 7 meeting in Japan in May to visit Hiroshima, and become the first American president to do so. It is remarkable that it required a wait of over 60 years until John Kerry became the first high American official to make such a visit, which he termed ‘gut-wrenching,‘ while at the same time purposely refraining from offering any kind of apology to the Japanese people for one of the worse acts of state terror against a defenseless population in all of human history. Let's hope that Obama goes, and displays more remorse than Kerry who at least deserves some credit for paving the way. The contrast between the many pilgrimages of homage by Western leaders, including those of Germany, to Auschwitz and other notorious death camps, and the absence of comparable pilgrimages to Hiroshima and Nagasaki underscores the difference between winning and losing a major war. This contrast cannot be properly accounted for by insisting on a hierarchy of evils that the Holocaust dominates.

Far-reaching revisions to Japan's national security laws became effective at the end of March 2016. Part of the government's efforts to “reinterpret” Japan's war-renouncing Constitution, the revised laws authorize military action that would previously have been unconstitutional. The move has been severely criticized within Japan as being a circumvention and violation of the Constitution, but there has been far less scrutiny of the international law implications of the changes.

Yagasaki Katsuma, emeritus professor of Ryukyu University, has been constantly sounding the alarm about the problem of internal exposure related to nuclear weapons testing and nuclear electricity generation. Since the explosion at the Fukushima Daiichi nuclear power plant (NPP), he has drawn on his expertise to conduct field research, and to support those who evacuated to Okinawa. We asked him to reflect on the five years since the accident at Fukushima Daiichi, and to lay out the issues that lie ahead.

Asia's water woes are worsening. Already the world's driest continent inper capita terms, Asia now faces a severe drought that has parched a vast region extending from southern Vietnam to central India. This has exacerbated political tensions, because it has highlighted the impact of China's dam-building policy on the environment and on water flows to the dozen countries located downstream.